Home / 316,826.13-437,220-189,531.66

Finding the Fourth Proportional to 316,826.13, 437,220 and 189,531.66

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Solution

The fourth proportional to 316,826.13, 437,220 and 189,531.66 is: 261,553.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,826.13 : 437,220 = 189,531.66 : x
  2. Step 2: Convert to fraction form
    316,826.13/437,220 = 189,531.66/x
  3. Step 3: Cross multiply
    316,826.13x = 437,220 × 189,531.66
  4. Step 4: Simplify right side
    316,826.13x = 82,867,032,385.20
  5. Step 5: Solve for x
    x = 82,867,032,385.20/316,826.13
  6. Step 6: Final answer
    x = 261,553.66

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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.