Home / 641,944.06-886,805.54-512,712.86

Finding the Fourth Proportional to 641,944.06, 886,805.54 and 512,712.86

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Solution

The fourth proportional to 641,944.06, 886,805.54 and 512,712.86 is: 708,280.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,944.06 : 886,805.54 = 512,712.86 : x
  2. Step 2: Convert to fraction form
    641,944.06/886,805.54 = 512,712.86/x
  3. Step 3: Cross multiply
    641,944.06x = 886,805.54 × 512,712.86
  4. Step 4: Simplify right side
    641,944.06x = 454,676,604,677.24
  5. Step 5: Solve for x
    x = 454,676,604,677.24/641,944.06
  6. Step 6: Final answer
    x = 708,280.73

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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.