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Finding the Fourth Proportional to 572,847.65, 790,542.29 and 314,727.92

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Solution

The fourth proportional to 572,847.65, 790,542.29 and 314,727.92 is: 434,331.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,847.65 : 790,542.29 = 314,727.92 : x
  2. Step 2: Convert to fraction form
    572,847.65/790,542.29 = 314,727.92/x
  3. Step 3: Cross multiply
    572,847.65x = 790,542.29 × 314,727.92
  4. Step 4: Simplify right side
    572,847.65x = 248,805,730,603.74
  5. Step 5: Solve for x
    x = 248,805,730,603.74/572,847.65
  6. Step 6: Final answer
    x = 434,331.42

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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.