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Finding the Fourth Proportional to 342,322.60, 472,290.45 and 197,125.26

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Solution

The fourth proportional to 342,322.60, 472,290.45 and 197,125.26 is: 271,966.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,322.60 : 472,290.45 = 197,125.26 : x
  2. Step 2: Convert to fraction form
    342,322.60/472,290.45 = 197,125.26/x
  3. Step 3: Cross multiply
    342,322.60x = 472,290.45 × 197,125.26
  4. Step 4: Simplify right side
    342,322.60x = 93,100,377,751.77
  5. Step 5: Solve for x
    x = 93,100,377,751.77/342,322.60
  6. Step 6: Final answer
    x = 271,966.79

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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.