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Finding the Fourth Proportional to 559,984.20, 839,976.30 and 507,496.20

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Solution

The fourth proportional to 559,984.20, 839,976.30 and 507,496.20 is: 761,244.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,984.20 : 839,976.30 = 507,496.20 : x
  2. Step 2: Convert to fraction form
    559,984.20/839,976.30 = 507,496.20/x
  3. Step 3: Cross multiply
    559,984.20x = 839,976.30 × 507,496.20
  4. Step 4: Simplify right side
    559,984.20x = 426,284,780,340.06
  5. Step 5: Solve for x
    x = 426,284,780,340.06/559,984.20
  6. Step 6: Final answer
    x = 761,244.30

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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.