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Finding the Fourth Proportional to 725,051.68, 999,791.22 and 453,020.20

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Solution

The fourth proportional to 725,051.68, 999,791.22 and 453,020.20 is: 624,680.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,051.68 : 999,791.22 = 453,020.20 : x
  2. Step 2: Convert to fraction form
    725,051.68/999,791.22 = 453,020.20/x
  3. Step 3: Cross multiply
    725,051.68x = 999,791.22 × 453,020.20
  4. Step 4: Simplify right side
    725,051.68x = 452,925,618,442.64
  5. Step 5: Solve for x
    x = 452,925,618,442.64/725,051.68
  6. Step 6: Final answer
    x = 624,680.46

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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.