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Finding the Fourth Proportional to 572,564.60, 858,155.70 and 291,937.40

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Solution

The fourth proportional to 572,564.60, 858,155.70 and 291,937.40 is: 437,553.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,564.60 : 858,155.70 = 291,937.40 : x
  2. Step 2: Convert to fraction form
    572,564.60/858,155.70 = 291,937.40/x
  3. Step 3: Cross multiply
    572,564.60x = 858,155.70 × 291,937.40
  4. Step 4: Simplify right side
    572,564.60x = 250,527,743,853.18
  5. Step 5: Solve for x
    x = 250,527,743,853.18/572,564.60
  6. Step 6: Final answer
    x = 437,553.67

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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.