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Finding the Fourth Proportional to 564,818.80, 847,228.20 and 209,795.80

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Solution

The fourth proportional to 564,818.80, 847,228.20 and 209,795.80 is: 314,693.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,818.80 : 847,228.20 = 209,795.80 : x
  2. Step 2: Convert to fraction form
    564,818.80/847,228.20 = 209,795.80/x
  3. Step 3: Cross multiply
    564,818.80x = 847,228.20 × 209,795.80
  4. Step 4: Simplify right side
    564,818.80x = 177,744,918,001.56
  5. Step 5: Solve for x
    x = 177,744,918,001.56/564,818.80
  6. Step 6: Final answer
    x = 314,693.70

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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.