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Finding the Fourth Proportional to 316,572.33, 436,869.74 and 173,332.34

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Solution

The fourth proportional to 316,572.33, 436,869.74 and 173,332.34 is: 239,198.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,572.33 : 436,869.74 = 173,332.34 : x
  2. Step 2: Convert to fraction form
    316,572.33/436,869.74 = 173,332.34/x
  3. Step 3: Cross multiply
    316,572.33x = 436,869.74 × 173,332.34
  4. Step 4: Simplify right side
    316,572.33x = 75,723,651,258.38
  5. Step 5: Solve for x
    x = 75,723,651,258.38/316,572.33
  6. Step 6: Final answer
    x = 239,198.58

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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.