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Finding the Fourth Proportional to 696,650.38, 961,581.88 and 454,969.48

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Solution

The fourth proportional to 696,650.38, 961,581.88 and 454,969.48 is: 627,991.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,650.38 : 961,581.88 = 454,969.48 : x
  2. Step 2: Convert to fraction form
    696,650.38/961,581.88 = 454,969.48/x
  3. Step 3: Cross multiply
    696,650.38x = 961,581.88 × 454,969.48
  4. Step 4: Simplify right side
    696,650.38x = 437,490,407,921.02
  5. Step 5: Solve for x
    x = 437,490,407,921.02/696,650.38
  6. Step 6: Final answer
    x = 627,991.34

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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.