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Finding the Fourth Proportional to 670,763.97, 925,570.17 and 453,445.47

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Solution

The fourth proportional to 670,763.97, 925,570.17 and 453,445.47 is: 625,697.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,763.97 : 925,570.17 = 453,445.47 : x
  2. Step 2: Convert to fraction form
    670,763.97/925,570.17 = 453,445.47/x
  3. Step 3: Cross multiply
    670,763.97x = 925,570.17 × 453,445.47
  4. Step 4: Simplify right side
    670,763.97x = 419,695,600,753.63
  5. Step 5: Solve for x
    x = 419,695,600,753.63/670,763.97
  6. Step 6: Final answer
    x = 625,697.89

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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.