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Finding the Fourth Proportional to 373,581.30, 515,385.10 and 260,469.66

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Solution

The fourth proportional to 373,581.30, 515,385.10 and 260,469.66 is: 359,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,581.30 : 515,385.10 = 260,469.66 : x
  2. Step 2: Convert to fraction form
    373,581.30/515,385.10 = 260,469.66/x
  3. Step 3: Cross multiply
    373,581.30x = 515,385.10 × 260,469.66
  4. Step 4: Simplify right side
    373,581.30x = 134,242,181,766.07
  5. Step 5: Solve for x
    x = 134,242,181,766.07/373,581.30
  6. Step 6: Final answer
    x = 359,338.60

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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.