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Finding the Fourth Proportional to 424,987.95, 636,005.70 and 292,127.70

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Solution

The fourth proportional to 424,987.95, 636,005.70 and 292,127.70 is: 437,176.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,987.95 : 636,005.70 = 292,127.70 : x
  2. Step 2: Convert to fraction form
    424,987.95/636,005.70 = 292,127.70/x
  3. Step 3: Cross multiply
    424,987.95x = 636,005.70 × 292,127.70
  4. Step 4: Simplify right side
    424,987.95x = 185,794,882,327.89
  5. Step 5: Solve for x
    x = 185,794,882,327.89/424,987.95
  6. Step 6: Final answer
    x = 437,176.82

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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.