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Finding the Fourth Proportional to 511,456.76, 706,112.76 and 454,711.13

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Solution

The fourth proportional to 511,456.76, 706,112.76 and 454,711.13 is: 627,770.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,456.76 : 706,112.76 = 454,711.13 : x
  2. Step 2: Convert to fraction form
    511,456.76/706,112.76 = 454,711.13/x
  3. Step 3: Cross multiply
    511,456.76x = 706,112.76 × 454,711.13
  4. Step 4: Simplify right side
    511,456.76x = 321,077,331,007.02
  5. Step 5: Solve for x
    x = 321,077,331,007.02/511,456.76
  6. Step 6: Final answer
    x = 627,770.24

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Half scale
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Double scale
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Similar ratio
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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.