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Finding the Fourth Proportional to 424,558.90, 636,736.28 and 124,958.12

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Solution

The fourth proportional to 424,558.90, 636,736.28 and 124,958.12 is: 187,407.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,558.90 : 636,736.28 = 124,958.12 : x
  2. Step 2: Convert to fraction form
    424,558.90/636,736.28 = 124,958.12/x
  3. Step 3: Cross multiply
    424,558.90x = 636,736.28 × 124,958.12
  4. Step 4: Simplify right side
    424,558.90x = 79,565,368,484.59
  5. Step 5: Solve for x
    x = 79,565,368,484.59/424,558.90
  6. Step 6: Final answer
    x = 187,407.14

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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.