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Finding the Fourth Proportional to 719,397.15, 992,532.29 and 512,698.10

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Solution

The fourth proportional to 719,397.15, 992,532.29 and 512,698.10 is: 707,355.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,397.15 : 992,532.29 = 512,698.10 : x
  2. Step 2: Convert to fraction form
    719,397.15/992,532.29 = 512,698.10/x
  3. Step 3: Cross multiply
    719,397.15x = 992,532.29 × 512,698.10
  4. Step 4: Simplify right side
    719,397.15x = 508,869,419,271.65
  5. Step 5: Solve for x
    x = 508,869,419,271.65/719,397.15
  6. Step 6: Final answer
    x = 707,355.35

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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.