Home / 283,784.28-391,624.95-156,464.40

Finding the Fourth Proportional to 283,784.28, 391,624.95 and 156,464.40

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Solution

The fourth proportional to 283,784.28, 391,624.95 and 156,464.40 is: 215,922.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,784.28 : 391,624.95 = 156,464.40 : x
  2. Step 2: Convert to fraction form
    283,784.28/391,624.95 = 156,464.40/x
  3. Step 3: Cross multiply
    283,784.28x = 391,624.95 × 156,464.40
  4. Step 4: Simplify right side
    283,784.28x = 61,275,362,826.78
  5. Step 5: Solve for x
    x = 61,275,362,826.78/283,784.28
  6. Step 6: Final answer
    x = 215,922.33

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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.