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Finding the Fourth Proportional to 605,722.80, 906,615.90 and 605,722.80

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Solution

The fourth proportional to 605,722.80, 906,615.90 and 605,722.80 is: 906,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,722.80 : 906,615.90 = 605,722.80 : x
  2. Step 2: Convert to fraction form
    605,722.80/906,615.90 = 605,722.80/x
  3. Step 3: Cross multiply
    605,722.80x = 906,615.90 × 605,722.80
  4. Step 4: Simplify right side
    605,722.80x = 549,157,921,472.52
  5. Step 5: Solve for x
    x = 549,157,921,472.52/605,722.80
  6. Step 6: Final answer
    x = 906,615.90

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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.