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Finding the Fourth Proportional to 342,458.80, 472,560.96 and 231,852.45

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Solution

The fourth proportional to 342,458.80, 472,560.96 and 231,852.45 is: 319,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,458.80 : 472,560.96 = 231,852.45 : x
  2. Step 2: Convert to fraction form
    342,458.80/472,560.96 = 231,852.45/x
  3. Step 3: Cross multiply
    342,458.80x = 472,560.96 × 231,852.45
  4. Step 4: Simplify right side
    342,458.80x = 109,564,418,991.90
  5. Step 5: Solve for x
    x = 109,564,418,991.90/342,458.80
  6. Step 6: Final answer
    x = 319,934.60

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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.