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Finding the Fourth Proportional to 605,679.80, 906,551.40 and 605,679.80

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Solution

The fourth proportional to 605,679.80, 906,551.40 and 605,679.80 is: 906,551.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,679.80 : 906,551.40 = 605,679.80 : x
  2. Step 2: Convert to fraction form
    605,679.80/906,551.40 = 605,679.80/x
  3. Step 3: Cross multiply
    605,679.80x = 906,551.40 × 605,679.80
  4. Step 4: Simplify right side
    605,679.80x = 549,079,870,641.72
  5. Step 5: Solve for x
    x = 549,079,870,641.72/605,679.80
  6. Step 6: Final answer
    x = 906,551.40

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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.