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Finding the Fourth Proportional to 650,981.20, 976,471.80 and 177,714.40

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Solution

The fourth proportional to 650,981.20, 976,471.80 and 177,714.40 is: 266,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,981.20 : 976,471.80 = 177,714.40 : x
  2. Step 2: Convert to fraction form
    650,981.20/976,471.80 = 177,714.40/x
  3. Step 3: Cross multiply
    650,981.20x = 976,471.80 × 177,714.40
  4. Step 4: Simplify right side
    650,981.20x = 173,533,100,053.92
  5. Step 5: Solve for x
    x = 173,533,100,053.92/650,981.20
  6. Step 6: Final answer
    x = 266,571.60

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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.