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Finding the Fourth Proportional to 342,329.14, 472,411.47 and 191,426.14

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Solution

The fourth proportional to 342,329.14, 472,411.47 and 191,426.14 is: 264,166.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,329.14 : 472,411.47 = 191,426.14 : x
  2. Step 2: Convert to fraction form
    342,329.14/472,411.47 = 191,426.14/x
  3. Step 3: Cross multiply
    342,329.14x = 472,411.47 × 191,426.14
  4. Step 4: Simplify right side
    342,329.14x = 90,431,904,193.83
  5. Step 5: Solve for x
    x = 90,431,904,193.83/342,329.14
  6. Step 6: Final answer
    x = 264,166.54

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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.