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Finding the Fourth Proportional to 260,370.91, 359,294.90 and 145,629.67

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Solution

The fourth proportional to 260,370.91, 359,294.90 and 145,629.67 is: 200,959.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,370.91 : 359,294.90 = 145,629.67 : x
  2. Step 2: Convert to fraction form
    260,370.91/359,294.90 = 145,629.67/x
  3. Step 3: Cross multiply
    260,370.91x = 359,294.90 × 145,629.67
  4. Step 4: Simplify right side
    260,370.91x = 52,323,997,719.68
  5. Step 5: Solve for x
    x = 52,323,997,719.68/260,370.91
  6. Step 6: Final answer
    x = 200,959.46

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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.