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Finding the Fourth Proportional to 572,543.60, 858,124.20 and 291,916.40

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Solution

The fourth proportional to 572,543.60, 858,124.20 and 291,916.40 is: 437,522.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,543.60 : 858,124.20 = 291,916.40 : x
  2. Step 2: Convert to fraction form
    572,543.60/858,124.20 = 291,916.40/x
  3. Step 3: Cross multiply
    572,543.60x = 858,124.20 × 291,916.40
  4. Step 4: Simplify right side
    572,543.60x = 250,500,527,216.88
  5. Step 5: Solve for x
    x = 250,500,527,216.88/572,543.60
  6. Step 6: Final answer
    x = 437,522.19

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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.