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Finding the Fourth Proportional to 559,983.70, 839,975.55 and 349,740.10

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Solution

The fourth proportional to 559,983.70, 839,975.55 and 349,740.10 is: 524,610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,983.70 : 839,975.55 = 349,740.10 : x
  2. Step 2: Convert to fraction form
    559,983.70/839,975.55 = 349,740.10/x
  3. Step 3: Cross multiply
    559,983.70x = 839,975.55 × 349,740.10
  4. Step 4: Simplify right side
    559,983.70x = 293,773,132,854.56
  5. Step 5: Solve for x
    x = 293,773,132,854.56/559,983.70
  6. Step 6: Final answer
    x = 524,610.15

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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.