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Finding the Fourth Proportional to 342,445.50, 472,576.50 and 191,542.50

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Solution

The fourth proportional to 342,445.50, 472,576.50 and 191,542.50 is: 264,329.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,445.50 : 472,576.50 = 191,542.50 : x
  2. Step 2: Convert to fraction form
    342,445.50/472,576.50 = 191,542.50/x
  3. Step 3: Cross multiply
    342,445.50x = 472,576.50 × 191,542.50
  4. Step 4: Simplify right side
    342,445.50x = 90,518,484,251.25
  5. Step 5: Solve for x
    x = 90,518,484,251.25/342,445.50
  6. Step 6: Final answer
    x = 264,329.61

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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.