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Finding the Fourth Proportional to 702,386.31, 969,188.84 and 426,600.66

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Solution

The fourth proportional to 702,386.31, 969,188.84 and 426,600.66 is: 588,645.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,386.31 : 969,188.84 = 426,600.66 : x
  2. Step 2: Convert to fraction form
    702,386.31/969,188.84 = 426,600.66/x
  3. Step 3: Cross multiply
    702,386.31x = 969,188.84 × 426,600.66
  4. Step 4: Simplify right side
    702,386.31x = 413,456,596,675.63
  5. Step 5: Solve for x
    x = 413,456,596,675.63/702,386.31
  6. Step 6: Final answer
    x = 588,645.58

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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.