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Finding the Fourth Proportional to 696,587.73, 960,401.21 and 451,138.85

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Solution

The fourth proportional to 696,587.73, 960,401.21 and 451,138.85 is: 621,995.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,587.73 : 960,401.21 = 451,138.85 : x
  2. Step 2: Convert to fraction form
    696,587.73/960,401.21 = 451,138.85/x
  3. Step 3: Cross multiply
    696,587.73x = 960,401.21 × 451,138.85
  4. Step 4: Simplify right side
    696,587.73x = 433,274,290,360.31
  5. Step 5: Solve for x
    x = 433,274,290,360.31/696,587.73
  6. Step 6: Final answer
    x = 621,995.29

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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.