Home / 689,785.43-951,897.02-383,856.57

Finding the Fourth Proportional to 689,785.43, 951,897.02 and 383,856.57

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Solution

The fourth proportional to 689,785.43, 951,897.02 and 383,856.57 is: 529,718.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,785.43 : 951,897.02 = 383,856.57 : x
  2. Step 2: Convert to fraction form
    689,785.43/951,897.02 = 383,856.57/x
  3. Step 3: Cross multiply
    689,785.43x = 951,897.02 × 383,856.57
  4. Step 4: Simplify right side
    689,785.43x = 365,391,923,171.14
  5. Step 5: Solve for x
    x = 365,391,923,171.14/689,785.43
  6. Step 6: Final answer
    x = 529,718.24

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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.