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Finding the Fourth Proportional to 482,675.42, 663,730.10 and 418,902.50

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Solution

The fourth proportional to 482,675.42, 663,730.10 and 418,902.50 is: 576,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,675.42 : 663,730.10 = 418,902.50 : x
  2. Step 2: Convert to fraction form
    482,675.42/663,730.10 = 418,902.50/x
  3. Step 3: Cross multiply
    482,675.42x = 663,730.10 × 418,902.50
  4. Step 4: Simplify right side
    482,675.42x = 278,038,199,350.95
  5. Step 5: Solve for x
    x = 278,038,199,350.95/482,675.42
  6. Step 6: Final answer
    x = 576,035.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.