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Finding the Fourth Proportional to 572,534.60, 858,110.70 and 291,907.40

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Solution

The fourth proportional to 572,534.60, 858,110.70 and 291,907.40 is: 437,508.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,534.60 : 858,110.70 = 291,907.40 : x
  2. Step 2: Convert to fraction form
    572,534.60/858,110.70 = 291,907.40/x
  3. Step 3: Cross multiply
    572,534.60x = 858,110.70 × 291,907.40
  4. Step 4: Simplify right side
    572,534.60x = 250,488,863,349.18
  5. Step 5: Solve for x
    x = 250,488,863,349.18/572,534.60
  6. Step 6: Final answer
    x = 437,508.69

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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.