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Finding the Fourth Proportional to 451,275.60, 676,913.40 and 448,165.20

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Solution

The fourth proportional to 451,275.60, 676,913.40 and 448,165.20 is: 672,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,275.60 : 676,913.40 = 448,165.20 : x
  2. Step 2: Convert to fraction form
    451,275.60/676,913.40 = 448,165.20/x
  3. Step 3: Cross multiply
    451,275.60x = 676,913.40 × 448,165.20
  4. Step 4: Simplify right side
    451,275.60x = 303,369,029,293.68
  5. Step 5: Solve for x
    x = 303,369,029,293.68/451,275.60
  6. Step 6: Final answer
    x = 672,247.80

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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.