Home / 641,945.06-886,806.92-512,713.86

Finding the Fourth Proportional to 641,945.06, 886,806.92 and 512,713.86

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Solution

The fourth proportional to 641,945.06, 886,806.92 and 512,713.86 is: 708,282.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,945.06 : 886,806.92 = 512,713.86 : x
  2. Step 2: Convert to fraction form
    641,945.06/886,806.92 = 512,713.86/x
  3. Step 3: Cross multiply
    641,945.06x = 886,806.92 × 512,713.86
  4. Step 4: Simplify right side
    641,945.06x = 454,678,199,027.91
  5. Step 5: Solve for x
    x = 454,678,199,027.91/641,945.06
  6. Step 6: Final answer
    x = 708,282.11

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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.