Home / 838,780.98-1,156,515.96-685,253.58

Finding the Fourth Proportional to 838,780.98, 1,156,515.96 and 685,253.58

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Solution

The fourth proportional to 838,780.98, 1,156,515.96 and 685,253.58 is: 944,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,780.98 : 1,156,515.96 = 685,253.58 : x
  2. Step 2: Convert to fraction form
    838,780.98/1,156,515.96 = 685,253.58/x
  3. Step 3: Cross multiply
    838,780.98x = 1,156,515.96 × 685,253.58
  4. Step 4: Simplify right side
    838,780.98x = 792,506,701,917.14
  5. Step 5: Solve for x
    x = 792,506,701,917.14/838,780.98
  6. Step 6: Final answer
    x = 944,831.51

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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.