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Finding the Fourth Proportional to 342,527.58, 472,678.34 and 189,572.18

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Solution

The fourth proportional to 342,527.58, 472,678.34 and 189,572.18 is: 261,604.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,527.58 : 472,678.34 = 189,572.18 : x
  2. Step 2: Convert to fraction form
    342,527.58/472,678.34 = 189,572.18/x
  3. Step 3: Cross multiply
    342,527.58x = 472,678.34 × 189,572.18
  4. Step 4: Simplify right side
    342,527.58x = 89,606,660,041.33
  5. Step 5: Solve for x
    x = 89,606,660,041.33/342,527.58
  6. Step 6: Final answer
    x = 261,604.22

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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.