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Finding the Fourth Proportional to 457,349.10, 686,023.65 and 448,601.10

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Solution

The fourth proportional to 457,349.10, 686,023.65 and 448,601.10 is: 672,901.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,349.10 : 686,023.65 = 448,601.10 : x
  2. Step 2: Convert to fraction form
    457,349.10/686,023.65 = 448,601.10/x
  3. Step 3: Cross multiply
    457,349.10x = 686,023.65 × 448,601.10
  4. Step 4: Simplify right side
    457,349.10x = 307,750,964,016.02
  5. Step 5: Solve for x
    x = 307,750,964,016.02/457,349.10
  6. Step 6: Final answer
    x = 672,901.65

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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.