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Finding the Fourth Proportional to 960,774, 1,325,870.28 and 578,816.88

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Solution

The fourth proportional to 960,774, 1,325,870.28 and 578,816.88 is: 798,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,774 : 1,325,870.28 = 578,816.88 : x
  2. Step 2: Convert to fraction form
    960,774/1,325,870.28 = 578,816.88/x
  3. Step 3: Cross multiply
    960,774x = 1,325,870.28 × 578,816.88
  4. Step 4: Simplify right side
    960,774x = 767,436,098,754.33
  5. Step 5: Solve for x
    x = 767,436,098,754.33/960,774
  6. Step 6: Final answer
    x = 798,768.60

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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.