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Finding the Fourth Proportional to 352,401.86, 486,314.55 and 191,256.92

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Solution

The fourth proportional to 352,401.86, 486,314.55 and 191,256.92 is: 263,934.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,401.86 : 486,314.55 = 191,256.92 : x
  2. Step 2: Convert to fraction form
    352,401.86/486,314.55 = 191,256.92/x
  3. Step 3: Cross multiply
    352,401.86x = 486,314.55 × 191,256.92
  4. Step 4: Simplify right side
    352,401.86x = 93,011,020,552.61
  5. Step 5: Solve for x
    x = 93,011,020,552.61/352,401.86
  6. Step 6: Final answer
    x = 263,934.54

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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.