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Finding the Fourth Proportional to 625,170.87, 936,759.86 and 400,346.37

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Solution

The fourth proportional to 625,170.87, 936,759.86 and 400,346.37 is: 599,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,170.87 : 936,759.86 = 400,346.37 : x
  2. Step 2: Convert to fraction form
    625,170.87/936,759.86 = 400,346.37/x
  3. Step 3: Cross multiply
    625,170.87x = 936,759.86 × 400,346.37
  4. Step 4: Simplify right side
    625,170.87x = 375,028,407,510.98
  5. Step 5: Solve for x
    x = 375,028,407,510.98/625,170.87
  6. Step 6: Final answer
    x = 599,881.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.