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Finding the Fourth Proportional to 719,173.74, 992,458.76 and 396,883.92

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Solution

The fourth proportional to 719,173.74, 992,458.76 and 396,883.92 is: 547,699.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,173.74 : 992,458.76 = 396,883.92 : x
  2. Step 2: Convert to fraction form
    719,173.74/992,458.76 = 396,883.92/x
  3. Step 3: Cross multiply
    719,173.74x = 992,458.76 × 396,883.92
  4. Step 4: Simplify right side
    719,173.74x = 393,890,923,107.14
  5. Step 5: Solve for x
    x = 393,890,923,107.14/719,173.74
  6. Step 6: Final answer
    x = 547,699.26

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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.