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Finding the Fourth Proportional to 522,762.72, 721,402.80 and 293,324.16

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Solution

The fourth proportional to 522,762.72, 721,402.80 and 293,324.16 is: 404,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,762.72 : 721,402.80 = 293,324.16 : x
  2. Step 2: Convert to fraction form
    522,762.72/721,402.80 = 293,324.16/x
  3. Step 3: Cross multiply
    522,762.72x = 721,402.80 × 293,324.16
  4. Step 4: Simplify right side
    522,762.72x = 211,604,870,331.65
  5. Step 5: Solve for x
    x = 211,604,870,331.65/522,762.72
  6. Step 6: Final answer
    x = 404,781.87

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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.