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Finding the Fourth Proportional to 345,357.95, 473,142.12 and 332,414.31

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Solution

The fourth proportional to 345,357.95, 473,142.12 and 332,414.31 is: 455,409.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,357.95 : 473,142.12 = 332,414.31 : x
  2. Step 2: Convert to fraction form
    345,357.95/473,142.12 = 332,414.31/x
  3. Step 3: Cross multiply
    345,357.95x = 473,142.12 × 332,414.31
  4. Step 4: Simplify right side
    345,357.95x = 157,279,213,749.30
  5. Step 5: Solve for x
    x = 157,279,213,749.30/345,357.95
  6. Step 6: Final answer
    x = 455,409.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.