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Finding the Fourth Proportional to 578,087.36, 866,761.04 and 277,970.24

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Solution

The fourth proportional to 578,087.36, 866,761.04 and 277,970.24 is: 416,777.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,087.36 : 866,761.04 = 277,970.24 : x
  2. Step 2: Convert to fraction form
    578,087.36/866,761.04 = 277,970.24/x
  3. Step 3: Cross multiply
    578,087.36x = 866,761.04 × 277,970.24
  4. Step 4: Simplify right side
    578,087.36x = 240,933,774,311.45
  5. Step 5: Solve for x
    x = 240,933,774,311.45/578,087.36
  6. Step 6: Final answer
    x = 416,777.45

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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.