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Finding the Fourth Proportional to 559,872,415.70, 839,808,623.55 and 488,208,799.70

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Solution

The fourth proportional to 559,872,415.70, 839,808,623.55 and 488,208,799.70 is: 732,313,199.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,415.70 : 839,808,623.55 = 488,208,799.70 : x
  2. Step 2: Convert to fraction form
    559,872,415.70/839,808,623.55 = 488,208,799.70/x
  3. Step 3: Cross multiply
    559,872,415.70x = 839,808,623.55 × 488,208,799.70
  4. Step 4: Simplify right side
    559,872,415.70x = 410,001,960,081,054,592
  5. Step 5: Solve for x
    x = 410,001,960,081,054,592/559,872,415.70
  6. Step 6: Final answer
    x = 732,313,199.55

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.