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Finding the Fourth Proportional to 572,484.60, 858,035.70 and 291,857.40

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Solution

The fourth proportional to 572,484.60, 858,035.70 and 291,857.40 is: 437,433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,484.60 : 858,035.70 = 291,857.40 : x
  2. Step 2: Convert to fraction form
    572,484.60/858,035.70 = 291,857.40/x
  3. Step 3: Cross multiply
    572,484.60x = 858,035.70 × 291,857.40
  4. Step 4: Simplify right side
    572,484.60x = 250,424,068,509.18
  5. Step 5: Solve for x
    x = 250,424,068,509.18/572,484.60
  6. Step 6: Final answer
    x = 437,433.72

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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.