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Finding the Fourth Proportional to 951,701.28, 1,313,765.04 and 666,340.32

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Solution

The fourth proportional to 951,701.28, 1,313,765.04 and 666,340.32 is: 919,841.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,701.28 : 1,313,765.04 = 666,340.32 : x
  2. Step 2: Convert to fraction form
    951,701.28/1,313,765.04 = 666,340.32/x
  3. Step 3: Cross multiply
    951,701.28x = 1,313,765.04 × 666,340.32
  4. Step 4: Simplify right side
    951,701.28x = 875,414,617,158.41
  5. Step 5: Solve for x
    x = 875,414,617,158.41/951,701.28
  6. Step 6: Final answer
    x = 919,841.80

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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.