Home / 331,451.24-457,210.28-208,895.60

Finding the Fourth Proportional to 331,451.24, 457,210.28 and 208,895.60

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Solution

The fourth proportional to 331,451.24, 457,210.28 and 208,895.60 is: 288,154.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,451.24 : 457,210.28 = 208,895.60 : x
  2. Step 2: Convert to fraction form
    331,451.24/457,210.28 = 208,895.60/x
  3. Step 3: Cross multiply
    331,451.24x = 457,210.28 × 208,895.60
  4. Step 4: Simplify right side
    331,451.24x = 95,509,215,766.77
  5. Step 5: Solve for x
    x = 95,509,215,766.77/331,451.24
  6. Step 6: Final answer
    x = 288,154.65

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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.