Home / 424,194.30-636,291.45-187,415.10

Finding the Fourth Proportional to 424,194.30, 636,291.45 and 187,415.10

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Solution

The fourth proportional to 424,194.30, 636,291.45 and 187,415.10 is: 281,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,194.30 : 636,291.45 = 187,415.10 : x
  2. Step 2: Convert to fraction form
    424,194.30/636,291.45 = 187,415.10/x
  3. Step 3: Cross multiply
    424,194.30x = 636,291.45 × 187,415.10
  4. Step 4: Simplify right side
    424,194.30x = 119,250,625,730.90
  5. Step 5: Solve for x
    x = 119,250,625,730.90/424,194.30
  6. Step 6: Final answer
    x = 281,122.65

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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.