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Finding the Fourth Proportional to 352,490.46, 486,445.68 and 191,345.55

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Solution

The fourth proportional to 352,490.46, 486,445.68 and 191,345.55 is: 264,061.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,490.46 : 486,445.68 = 191,345.55 : x
  2. Step 2: Convert to fraction form
    352,490.46/486,445.68 = 191,345.55/x
  3. Step 3: Cross multiply
    352,490.46x = 486,445.68 × 191,345.55
  4. Step 4: Simplify right side
    352,490.46x = 93,079,216,184.72
  5. Step 5: Solve for x
    x = 93,079,216,184.72/352,490.46
  6. Step 6: Final answer
    x = 264,061.66

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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.