Home / 296,005.12-408,488.64-161,869.12

Finding the Fourth Proportional to 296,005.12, 408,488.64 and 161,869.12

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Solution

The fourth proportional to 296,005.12, 408,488.64 and 161,869.12 is: 223,380.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,005.12 : 408,488.64 = 161,869.12 : x
  2. Step 2: Convert to fraction form
    296,005.12/408,488.64 = 161,869.12/x
  3. Step 3: Cross multiply
    296,005.12x = 408,488.64 × 161,869.12
  4. Step 4: Simplify right side
    296,005.12x = 66,121,696,686.80
  5. Step 5: Solve for x
    x = 66,121,696,686.80/296,005.12
  6. Step 6: Final answer
    x = 223,380.25

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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.