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Finding the Fourth Proportional to 528,059.90, 791,506.65 and 291,572.30

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Solution

The fourth proportional to 528,059.90, 791,506.65 and 291,572.30 is: 437,036.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,059.90 : 791,506.65 = 291,572.30 : x
  2. Step 2: Convert to fraction form
    528,059.90/791,506.65 = 291,572.30/x
  3. Step 3: Cross multiply
    528,059.90x = 791,506.65 × 291,572.30
  4. Step 4: Simplify right side
    528,059.90x = 230,781,414,405.80
  5. Step 5: Solve for x
    x = 230,781,414,405.80/528,059.90
  6. Step 6: Final answer
    x = 437,036.43

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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.