Home / 912,342.06-1,258,755.52-636,692.58

Finding the Fourth Proportional to 912,342.06, 1,258,755.52 and 636,692.58

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Solution

The fourth proportional to 912,342.06, 1,258,755.52 and 636,692.58 is: 878,442.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,342.06 : 1,258,755.52 = 636,692.58 : x
  2. Step 2: Convert to fraction form
    912,342.06/1,258,755.52 = 636,692.58/x
  3. Step 3: Cross multiply
    912,342.06x = 1,258,755.52 × 636,692.58
  4. Step 4: Simplify right side
    912,342.06x = 801,440,299,618.04
  5. Step 5: Solve for x
    x = 801,440,299,618.04/912,342.06
  6. Step 6: Final answer
    x = 878,442.78

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1.5x scale

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.