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Finding the Fourth Proportional to 690,595.60, 953,168.94 and 464,109.88

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Solution

The fourth proportional to 690,595.60, 953,168.94 and 464,109.88 is: 640,570.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,595.60 : 953,168.94 = 464,109.88 : x
  2. Step 2: Convert to fraction form
    690,595.60/953,168.94 = 464,109.88/x
  3. Step 3: Cross multiply
    690,595.60x = 953,168.94 × 464,109.88
  4. Step 4: Simplify right side
    690,595.60x = 442,375,122,363.13
  5. Step 5: Solve for x
    x = 442,375,122,363.13/690,595.60
  6. Step 6: Final answer
    x = 640,570.43

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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.