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Finding the Fourth Proportional to 690,577.60, 953,144.14 and 464,091.88

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Solution

The fourth proportional to 690,577.60, 953,144.14 and 464,091.88 is: 640,545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,577.60 : 953,144.14 = 464,091.88 : x
  2. Step 2: Convert to fraction form
    690,577.60/953,144.14 = 464,091.88/x
  3. Step 3: Cross multiply
    690,577.60x = 953,144.14 × 464,091.88
  4. Step 4: Simplify right side
    690,577.60x = 442,346,455,843.58
  5. Step 5: Solve for x
    x = 442,346,455,843.58/690,577.60
  6. Step 6: Final answer
    x = 640,545.62

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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.