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Finding the Fourth Proportional to 584,612.20, 875,168.70 and 521,626.60

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Solution

The fourth proportional to 584,612.20, 875,168.70 and 521,626.60 is: 780,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,612.20 : 875,168.70 = 521,626.60 : x
  2. Step 2: Convert to fraction form
    584,612.20/875,168.70 = 521,626.60/x
  3. Step 3: Cross multiply
    584,612.20x = 875,168.70 × 521,626.60
  4. Step 4: Simplify right side
    584,612.20x = 456,511,273,407.42
  5. Step 5: Solve for x
    x = 456,511,273,407.42/584,612.20
  6. Step 6: Final answer
    x = 780,878.80

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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.