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Finding the Fourth Proportional to 424,449.59, 636,605.18 and 124,860.10

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Solution

The fourth proportional to 424,449.59, 636,605.18 and 124,860.10 is: 187,269.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,449.59 : 636,605.18 = 124,860.10 : x
  2. Step 2: Convert to fraction form
    424,449.59/636,605.18 = 124,860.10/x
  3. Step 3: Cross multiply
    424,449.59x = 636,605.18 × 124,860.10
  4. Step 4: Simplify right side
    424,449.59x = 79,486,582,627.99
  5. Step 5: Solve for x
    x = 79,486,582,627.99/424,449.59
  6. Step 6: Final answer
    x = 187,269.79

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1.5x scale

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.