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Finding the Fourth Proportional to 488,356.20, 732,534.30 and 346,638.60

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Solution

The fourth proportional to 488,356.20, 732,534.30 and 346,638.60 is: 519,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,356.20 : 732,534.30 = 346,638.60 : x
  2. Step 2: Convert to fraction form
    488,356.20/732,534.30 = 346,638.60/x
  3. Step 3: Cross multiply
    488,356.20x = 732,534.30 × 346,638.60
  4. Step 4: Simplify right side
    488,356.20x = 253,924,664,203.98
  5. Step 5: Solve for x
    x = 253,924,664,203.98/488,356.20
  6. Step 6: Final answer
    x = 519,957.90

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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.