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Finding the Fourth Proportional to 648,049.40, 971,613.30 and 248,535.80

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Solution

The fourth proportional to 648,049.40, 971,613.30 and 248,535.80 is: 372,626.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,049.40 : 971,613.30 = 248,535.80 : x
  2. Step 2: Convert to fraction form
    648,049.40/971,613.30 = 248,535.80/x
  3. Step 3: Cross multiply
    648,049.40x = 971,613.30 × 248,535.80
  4. Step 4: Simplify right side
    648,049.40x = 241,480,688,806.14
  5. Step 5: Solve for x
    x = 241,480,688,806.14/648,049.40
  6. Step 6: Final answer
    x = 372,626.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.