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Finding the Fourth Proportional to 539,270.28, 808,905.54 and 165,293.28

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Solution

The fourth proportional to 539,270.28, 808,905.54 and 165,293.28 is: 247,939.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,270.28 : 808,905.54 = 165,293.28 : x
  2. Step 2: Convert to fraction form
    539,270.28/808,905.54 = 165,293.28/x
  3. Step 3: Cross multiply
    539,270.28x = 808,905.54 × 165,293.28
  4. Step 4: Simplify right side
    539,270.28x = 133,706,649,916.77
  5. Step 5: Solve for x
    x = 133,706,649,916.77/539,270.28
  6. Step 6: Final answer
    x = 247,939.96

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Similar ratio
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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.