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Finding the Fourth Proportional to 891,104.52, 1,229,610.58 and 509,156.04

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Solution

The fourth proportional to 891,104.52, 1,229,610.58 and 509,156.04 is: 702,570.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,104.52 : 1,229,610.58 = 509,156.04 : x
  2. Step 2: Convert to fraction form
    891,104.52/1,229,610.58 = 509,156.04/x
  3. Step 3: Cross multiply
    891,104.52x = 1,229,610.58 × 509,156.04
  4. Step 4: Simplify right side
    891,104.52x = 626,063,653,654.90
  5. Step 5: Solve for x
    x = 626,063,653,654.90/891,104.52
  6. Step 6: Final answer
    x = 702,570.39

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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.