Home / 625,764.09-863,310.22-408,228.50

Finding the Fourth Proportional to 625,764.09, 863,310.22 and 408,228.50

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Solution

The fourth proportional to 625,764.09, 863,310.22 and 408,228.50 is: 563,196.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,764.09 : 863,310.22 = 408,228.50 : x
  2. Step 2: Convert to fraction form
    625,764.09/863,310.22 = 408,228.50/x
  3. Step 3: Cross multiply
    625,764.09x = 863,310.22 × 408,228.50
  4. Step 4: Simplify right side
    625,764.09x = 352,427,832,073.93
  5. Step 5: Solve for x
    x = 352,427,832,073.93/625,764.09
  6. Step 6: Final answer
    x = 563,196.00

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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.