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Finding the Fourth Proportional to 616,861.60, 926,674.80 and 591,671.20

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Solution

The fourth proportional to 616,861.60, 926,674.80 and 591,671.20 is: 888,832.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,861.60 : 926,674.80 = 591,671.20 : x
  2. Step 2: Convert to fraction form
    616,861.60/926,674.80 = 591,671.20/x
  3. Step 3: Cross multiply
    616,861.60x = 926,674.80 × 591,671.20
  4. Step 4: Simplify right side
    616,861.60x = 548,286,790,925.76
  5. Step 5: Solve for x
    x = 548,286,790,925.76/616,861.60
  6. Step 6: Final answer
    x = 888,832.75

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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.