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Finding the Fourth Proportional to 674,362.80, 930,829.92 and 416,321.04

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Solution

The fourth proportional to 674,362.80, 930,829.92 and 416,321.04 is: 574,652.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,362.80 : 930,829.92 = 416,321.04 : x
  2. Step 2: Convert to fraction form
    674,362.80/930,829.92 = 416,321.04/x
  3. Step 3: Cross multiply
    674,362.80x = 930,829.92 × 416,321.04
  4. Step 4: Simplify right side
    674,362.80x = 387,524,080,357.52
  5. Step 5: Solve for x
    x = 387,524,080,357.52/674,362.80
  6. Step 6: Final answer
    x = 574,652.22

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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.