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Finding the Fourth Proportional to 886,806.46, 1,223,404.15 and 542,658.92

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Solution

The fourth proportional to 886,806.46, 1,223,404.15 and 542,658.92 is: 748,631.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,806.46 : 1,223,404.15 = 542,658.92 : x
  2. Step 2: Convert to fraction form
    886,806.46/1,223,404.15 = 542,658.92/x
  3. Step 3: Cross multiply
    886,806.46x = 1,223,404.15 × 542,658.92
  4. Step 4: Simplify right side
    886,806.46x = 663,891,174,762.52
  5. Step 5: Solve for x
    x = 663,891,174,762.52/886,806.46
  6. Step 6: Final answer
    x = 748,631.41

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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.