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Finding the Fourth Proportional to 625,191.51, 936,659.74 and 384,887.19

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Solution

The fourth proportional to 625,191.51, 936,659.74 and 384,887.19 is: 576,636.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,191.51 : 936,659.74 = 384,887.19 : x
  2. Step 2: Convert to fraction form
    625,191.51/936,659.74 = 384,887.19/x
  3. Step 3: Cross multiply
    625,191.51x = 936,659.74 × 384,887.19
  4. Step 4: Simplify right side
    625,191.51x = 360,508,335,314.73
  5. Step 5: Solve for x
    x = 360,508,335,314.73/625,191.51
  6. Step 6: Final answer
    x = 576,636.65

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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.