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Finding the Fourth Proportional to 578,617.38, 798,319.26 and 374,344.83

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Solution

The fourth proportional to 578,617.38, 798,319.26 and 374,344.83 is: 516,484.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,617.38 : 798,319.26 = 374,344.83 : x
  2. Step 2: Convert to fraction form
    578,617.38/798,319.26 = 374,344.83/x
  3. Step 3: Cross multiply
    578,617.38x = 798,319.26 × 374,344.83
  4. Step 4: Simplify right side
    578,617.38x = 298,846,687,670.43
  5. Step 5: Solve for x
    x = 298,846,687,670.43/578,617.38
  6. Step 6: Final answer
    x = 516,484.12

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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.