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Finding the Fourth Proportional to 432,705.55, 597,132.15 and 239,107.87

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Solution

The fourth proportional to 432,705.55, 597,132.15 and 239,107.87 is: 329,968.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,705.55 : 597,132.15 = 239,107.87 : x
  2. Step 2: Convert to fraction form
    432,705.55/597,132.15 = 239,107.87/x
  3. Step 3: Cross multiply
    432,705.55x = 597,132.15 × 239,107.87
  4. Step 4: Simplify right side
    432,705.55x = 142,778,996,495.02
  5. Step 5: Solve for x
    x = 142,778,996,495.02/432,705.55
  6. Step 6: Final answer
    x = 329,968.03

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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.