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Finding the Fourth Proportional to 541,439.69, 812,344.06 and 162,369.71

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Solution

The fourth proportional to 541,439.69, 812,344.06 and 162,369.71 is: 243,609.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,439.69 : 812,344.06 = 162,369.71 : x
  2. Step 2: Convert to fraction form
    541,439.69/812,344.06 = 162,369.71/x
  3. Step 3: Cross multiply
    541,439.69x = 812,344.06 × 162,369.71
  4. Step 4: Simplify right side
    541,439.69x = 131,900,073,656.06
  5. Step 5: Solve for x
    x = 131,900,073,656.06/541,439.69
  6. Step 6: Final answer
    x = 243,609.91

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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.