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Finding the Fourth Proportional to 655,712.93, 983,483.26 and 206,436.15

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Solution

The fourth proportional to 655,712.93, 983,483.26 and 206,436.15 is: 309,627.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,712.93 : 983,483.26 = 206,436.15 : x
  2. Step 2: Convert to fraction form
    655,712.93/983,483.26 = 206,436.15/x
  3. Step 3: Cross multiply
    655,712.93x = 983,483.26 × 206,436.15
  4. Step 4: Simplify right side
    655,712.93x = 203,026,497,267.76
  5. Step 5: Solve for x
    x = 203,026,497,267.76/655,712.93
  6. Step 6: Final answer
    x = 309,627.11

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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.