Home / 426,961.56-639,886.67-173,945.71

Finding the Fourth Proportional to 426,961.56, 639,886.67 and 173,945.71

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Solution

The fourth proportional to 426,961.56, 639,886.67 and 173,945.71 is: 260,692.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,961.56 : 639,886.67 = 173,945.71 : x
  2. Step 2: Convert to fraction form
    426,961.56/639,886.67 = 173,945.71/x
  3. Step 3: Cross multiply
    426,961.56x = 639,886.67 × 173,945.71
  4. Step 4: Simplify right side
    426,961.56x = 111,305,541,715.11
  5. Step 5: Solve for x
    x = 111,305,541,715.11/426,961.56
  6. Step 6: Final answer
    x = 260,692.18

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1.5x scale

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.