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Finding the Fourth Proportional to 779,797.16, 1,167,034.34 and 653,580

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Solution

The fourth proportional to 779,797.16, 1,167,034.34 and 653,580 is: 978,139.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,797.16 : 1,167,034.34 = 653,580 : x
  2. Step 2: Convert to fraction form
    779,797.16/1,167,034.34 = 653,580/x
  3. Step 3: Cross multiply
    779,797.16x = 1,167,034.34 × 653,580
  4. Step 4: Simplify right side
    779,797.16x = 762,750,303,937.20
  5. Step 5: Solve for x
    x = 762,750,303,937.20/779,797.16
  6. Step 6: Final answer
    x = 978,139.37

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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.