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Finding the Fourth Proportional to 626,959.31, 865,468.60 and 423,286.02

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Solution

The fourth proportional to 626,959.31, 865,468.60 and 423,286.02 is: 584,313.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,959.31 : 865,468.60 = 423,286.02 : x
  2. Step 2: Convert to fraction form
    626,959.31/865,468.60 = 423,286.02/x
  3. Step 3: Cross multiply
    626,959.31x = 865,468.60 × 423,286.02
  4. Step 4: Simplify right side
    626,959.31x = 366,340,758,070.76
  5. Step 5: Solve for x
    x = 366,340,758,070.76/626,959.31
  6. Step 6: Final answer
    x = 584,313.46

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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.