Home / 499,296.15-689,032.86-284,432.85

Finding the Fourth Proportional to 499,296.15, 689,032.86 and 284,432.85

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Solution

The fourth proportional to 499,296.15, 689,032.86 and 284,432.85 is: 392,519.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,296.15 : 689,032.86 = 284,432.85 : x
  2. Step 2: Convert to fraction form
    499,296.15/689,032.86 = 284,432.85/x
  3. Step 3: Cross multiply
    499,296.15x = 689,032.86 × 284,432.85
  4. Step 4: Simplify right side
    499,296.15x = 195,983,580,113.45
  5. Step 5: Solve for x
    x = 195,983,580,113.45/499,296.15
  6. Step 6: Final answer
    x = 392,519.71

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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.