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Finding the Fourth Proportional to 541,353.47, 812,142.27 and 162,258.89

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Solution

The fourth proportional to 541,353.47, 812,142.27 and 162,258.89 is: 243,421.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,353.47 : 812,142.27 = 162,258.89 : x
  2. Step 2: Convert to fraction form
    541,353.47/812,142.27 = 162,258.89/x
  3. Step 3: Cross multiply
    541,353.47x = 812,142.27 × 162,258.89
  4. Step 4: Simplify right side
    541,353.47x = 131,777,299,191.57
  5. Step 5: Solve for x
    x = 131,777,299,191.57/541,353.47
  6. Step 6: Final answer
    x = 243,421.92

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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.