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Finding the Fourth Proportional to 559,632.80, 839,449.20 and 185,655.80

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Solution

The fourth proportional to 559,632.80, 839,449.20 and 185,655.80 is: 278,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,632.80 : 839,449.20 = 185,655.80 : x
  2. Step 2: Convert to fraction form
    559,632.80/839,449.20 = 185,655.80/x
  3. Step 3: Cross multiply
    559,632.80x = 839,449.20 × 185,655.80
  4. Step 4: Simplify right side
    559,632.80x = 155,848,612,785.36
  5. Step 5: Solve for x
    x = 155,848,612,785.36/559,632.80
  6. Step 6: Final answer
    x = 278,483.70

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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.