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Finding the Fourth Proportional to 572,575.60, 858,172.20 and 291,948.40

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Solution

The fourth proportional to 572,575.60, 858,172.20 and 291,948.40 is: 437,570.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,575.60 : 858,172.20 = 291,948.40 : x
  2. Step 2: Convert to fraction form
    572,575.60/858,172.20 = 291,948.40/x
  3. Step 3: Cross multiply
    572,575.60x = 858,172.20 × 291,948.40
  4. Step 4: Simplify right side
    572,575.60x = 250,542,000,714.48
  5. Step 5: Solve for x
    x = 250,542,000,714.48/572,575.60
  6. Step 6: Final answer
    x = 437,570.17

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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.