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Finding the Fourth Proportional to 424,460.66, 636,471.88 and 124,902.30

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Solution

The fourth proportional to 424,460.66, 636,471.88 and 124,902.30 is: 187,288.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,460.66 : 636,471.88 = 124,902.30 : x
  2. Step 2: Convert to fraction form
    424,460.66/636,471.88 = 124,902.30/x
  3. Step 3: Cross multiply
    424,460.66x = 636,471.88 × 124,902.30
  4. Step 4: Simplify right side
    424,460.66x = 79,496,803,771.84
  5. Step 5: Solve for x
    x = 79,496,803,771.84/424,460.66
  6. Step 6: Final answer
    x = 187,288.98

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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.