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Finding the Fourth Proportional to 424,304.08, 636,476.06 and 140,019.48

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Solution

The fourth proportional to 424,304.08, 636,476.06 and 140,019.48 is: 210,035.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,304.08 : 636,476.06 = 140,019.48 : x
  2. Step 2: Convert to fraction form
    424,304.08/636,476.06 = 140,019.48/x
  3. Step 3: Cross multiply
    424,304.08x = 636,476.06 × 140,019.48
  4. Step 4: Simplify right side
    424,304.08x = 89,119,046,253.55
  5. Step 5: Solve for x
    x = 89,119,046,253.55/424,304.08
  6. Step 6: Final answer
    x = 210,035.80

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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.