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Finding the Fourth Proportional to 474,443.10, 711,664.65 and 453,966.30

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Solution

The fourth proportional to 474,443.10, 711,664.65 and 453,966.30 is: 680,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,443.10 : 711,664.65 = 453,966.30 : x
  2. Step 2: Convert to fraction form
    474,443.10/711,664.65 = 453,966.30/x
  3. Step 3: Cross multiply
    474,443.10x = 711,664.65 × 453,966.30
  4. Step 4: Simplify right side
    474,443.10x = 323,071,768,001.30
  5. Step 5: Solve for x
    x = 323,071,768,001.30/474,443.10
  6. Step 6: Final answer
    x = 680,949.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.