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Finding the Fourth Proportional to 374,248.28, 516,456.60 and 204,478.76

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Solution

The fourth proportional to 374,248.28, 516,456.60 and 204,478.76 is: 282,177.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,248.28 : 516,456.60 = 204,478.76 : x
  2. Step 2: Convert to fraction form
    374,248.28/516,456.60 = 204,478.76/x
  3. Step 3: Cross multiply
    374,248.28x = 516,456.60 × 204,478.76
  4. Step 4: Simplify right side
    374,248.28x = 105,604,405,161.82
  5. Step 5: Solve for x
    x = 105,604,405,161.82/374,248.28
  6. Step 6: Final answer
    x = 282,177.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.