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Finding the Fourth Proportional to 572,563.60, 858,154.20 and 291,936.40

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Solution

The fourth proportional to 572,563.60, 858,154.20 and 291,936.40 is: 437,552.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,563.60 : 858,154.20 = 291,936.40 : x
  2. Step 2: Convert to fraction form
    572,563.60/858,154.20 = 291,936.40/x
  3. Step 3: Cross multiply
    572,563.60x = 858,154.20 × 291,936.40
  4. Step 4: Simplify right side
    572,563.60x = 250,526,447,792.88
  5. Step 5: Solve for x
    x = 250,526,447,792.88/572,563.60
  6. Step 6: Final answer
    x = 437,552.17

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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.