Home / 838,775.45-1,156,508.38-685,248.05

Finding the Fourth Proportional to 838,775.45, 1,156,508.38 and 685,248.05

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Solution

The fourth proportional to 838,775.45, 1,156,508.38 and 685,248.05 is: 944,823.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,775.45 : 1,156,508.38 = 685,248.05 : x
  2. Step 2: Convert to fraction form
    838,775.45/1,156,508.38 = 685,248.05/x
  3. Step 3: Cross multiply
    838,775.45x = 1,156,508.38 × 685,248.05
  4. Step 4: Simplify right side
    838,775.45x = 792,495,115,951.49
  5. Step 5: Solve for x
    x = 792,495,115,951.49/838,775.45
  6. Step 6: Final answer
    x = 944,823.93

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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.