Home / 391,377.96-586,877.04-191,464.20

Finding the Fourth Proportional to 391,377.96, 586,877.04 and 191,464.20

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Solution

The fourth proportional to 391,377.96, 586,877.04 and 191,464.20 is: 287,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,377.96 : 586,877.04 = 191,464.20 : x
  2. Step 2: Convert to fraction form
    391,377.96/586,877.04 = 191,464.20/x
  3. Step 3: Cross multiply
    391,377.96x = 586,877.04 × 191,464.20
  4. Step 4: Simplify right side
    391,377.96x = 112,365,942,961.97
  5. Step 5: Solve for x
    x = 112,365,942,961.97/391,377.96
  6. Step 6: Final answer
    x = 287,103.40

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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.