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Finding the Fourth Proportional to 732,639.10, 1,098,958.65 and 520,062.70

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Solution

The fourth proportional to 732,639.10, 1,098,958.65 and 520,062.70 is: 780,094.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    732,639.10 : 1,098,958.65 = 520,062.70 : x
  2. Step 2: Convert to fraction form
    732,639.10/1,098,958.65 = 520,062.70/x
  3. Step 3: Cross multiply
    732,639.10x = 1,098,958.65 × 520,062.70
  4. Step 4: Simplify right side
    732,639.10x = 571,527,402,707.36
  5. Step 5: Solve for x
    x = 571,527,402,707.36/732,639.10
  6. Step 6: Final answer
    x = 780,094.05

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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.