Home / 989,902.11-1,366,065.78-537,193.11

Finding the Fourth Proportional to 989,902.11, 1,366,065.78 and 537,193.11

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Solution

The fourth proportional to 989,902.11, 1,366,065.78 and 537,193.11 is: 741,326.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,902.11 : 1,366,065.78 = 537,193.11 : x
  2. Step 2: Convert to fraction form
    989,902.11/1,366,065.78 = 537,193.11/x
  3. Step 3: Cross multiply
    989,902.11x = 1,366,065.78 × 537,193.11
  4. Step 4: Simplify right side
    989,902.11x = 733,841,124,822.78
  5. Step 5: Solve for x
    x = 733,841,124,822.78/989,902.11
  6. Step 6: Final answer
    x = 741,326.96

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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.