Home / 354,913.60-489,785.52-193,766.80

Finding the Fourth Proportional to 354,913.60, 489,785.52 and 193,766.80

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Solution

The fourth proportional to 354,913.60, 489,785.52 and 193,766.80 is: 267,400.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,913.60 : 489,785.52 = 193,766.80 : x
  2. Step 2: Convert to fraction form
    354,913.60/489,785.52 = 193,766.80/x
  3. Step 3: Cross multiply
    354,913.60x = 489,785.52 × 193,766.80
  4. Step 4: Simplify right side
    354,913.60x = 94,904,172,896.74
  5. Step 5: Solve for x
    x = 94,904,172,896.74/354,913.60
  6. Step 6: Final answer
    x = 267,400.78

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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.