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Finding the Fourth Proportional to 342,437.22, 472,554.27 and 189,471.42

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Solution

The fourth proportional to 342,437.22, 472,554.27 and 189,471.42 is: 261,465.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,437.22 : 472,554.27 = 189,471.42 : x
  2. Step 2: Convert to fraction form
    342,437.22/472,554.27 = 189,471.42/x
  3. Step 3: Cross multiply
    342,437.22x = 472,554.27 × 189,471.42
  4. Step 4: Simplify right side
    342,437.22x = 89,535,528,563.96
  5. Step 5: Solve for x
    x = 89,535,528,563.96/342,437.22
  6. Step 6: Final answer
    x = 261,465.53

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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.