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Finding the Fourth Proportional to 579,295.12, 798,589.56 and 406,687.52

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Solution

The fourth proportional to 579,295.12, 798,589.56 and 406,687.52 is: 560,640.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,295.12 : 798,589.56 = 406,687.52 : x
  2. Step 2: Convert to fraction form
    579,295.12/798,589.56 = 406,687.52/x
  3. Step 3: Cross multiply
    579,295.12x = 798,589.56 × 406,687.52
  4. Step 4: Simplify right side
    579,295.12x = 324,776,407,654.29
  5. Step 5: Solve for x
    x = 324,776,407,654.29/579,295.12
  6. Step 6: Final answer
    x = 560,640.68

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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.