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Finding the Fourth Proportional to 676,846.01, 934,073.22 and 386,504.88

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Solution

The fourth proportional to 676,846.01, 934,073.22 and 386,504.88 is: 533,391.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,846.01 : 934,073.22 = 386,504.88 : x
  2. Step 2: Convert to fraction form
    676,846.01/934,073.22 = 386,504.88/x
  3. Step 3: Cross multiply
    676,846.01x = 934,073.22 × 386,504.88
  4. Step 4: Simplify right side
    676,846.01x = 361,023,857,807.31
  5. Step 5: Solve for x
    x = 361,023,857,807.31/676,846.01
  6. Step 6: Final answer
    x = 533,391.43

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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.