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Finding the Fourth Proportional to 648,440.28, 892,866.68 and 587,615.19

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Solution

The fourth proportional to 648,440.28, 892,866.68 and 587,615.19 is: 809,113.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,440.28 : 892,866.68 = 587,615.19 : x
  2. Step 2: Convert to fraction form
    648,440.28/892,866.68 = 587,615.19/x
  3. Step 3: Cross multiply
    648,440.28x = 892,866.68 × 587,615.19
  4. Step 4: Simplify right side
    648,440.28x = 524,662,023,524.99
  5. Step 5: Solve for x
    x = 524,662,023,524.99/648,440.28
  6. Step 6: Final answer
    x = 809,113.87

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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.