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Finding the Fourth Proportional to 352,760.55, 486,811.43 and 191,616.91

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Solution

The fourth proportional to 352,760.55, 486,811.43 and 191,616.91 is: 264,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,760.55 : 486,811.43 = 191,616.91 : x
  2. Step 2: Convert to fraction form
    352,760.55/486,811.43 = 191,616.91/x
  3. Step 3: Cross multiply
    352,760.55x = 486,811.43 × 191,616.91
  4. Step 4: Simplify right side
    352,760.55x = 93,281,301,969.28
  5. Step 5: Solve for x
    x = 93,281,301,969.28/352,760.55
  6. Step 6: Final answer
    x = 264,432.35

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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.