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Finding the Fourth Proportional to 514,450.32, 709,882.92 and 299,545.08

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Solution

The fourth proportional to 514,450.32, 709,882.92 and 299,545.08 is: 413,338.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,450.32 : 709,882.92 = 299,545.08 : x
  2. Step 2: Convert to fraction form
    514,450.32/709,882.92 = 299,545.08/x
  3. Step 3: Cross multiply
    514,450.32x = 709,882.92 × 299,545.08
  4. Step 4: Simplify right side
    514,450.32x = 212,641,936,062.03
  5. Step 5: Solve for x
    x = 212,641,936,062.03/514,450.32
  6. Step 6: Final answer
    x = 413,338.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.