Home / 2,778,702.17-4,167,470.05-783,691.61

Finding the Fourth Proportional to 2,778,702.17, 4,167,470.05 and 783,691.61

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Solution

The fourth proportional to 2,778,702.17, 4,167,470.05 and 783,691.61 is: 1,175,372.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778,702.17 : 4,167,470.05 = 783,691.61 : x
  2. Step 2: Convert to fraction form
    2,778,702.17/4,167,470.05 = 783,691.61/x
  3. Step 3: Cross multiply
    2,778,702.17x = 4,167,470.05 × 783,691.61
  4. Step 4: Simplify right side
    2,778,702.17x = 3,266,011,313,111.28
  5. Step 5: Solve for x
    x = 3,266,011,313,111.28/2,778,702.17
  6. Step 6: Final answer
    x = 1,175,372.93

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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.