Home / 530,619.78-732,236.18-288,896.82

Finding the Fourth Proportional to 530,619.78, 732,236.18 and 288,896.82

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Solution

The fourth proportional to 530,619.78, 732,236.18 and 288,896.82 is: 398,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,619.78 : 732,236.18 = 288,896.82 : x
  2. Step 2: Convert to fraction form
    530,619.78/732,236.18 = 288,896.82/x
  3. Step 3: Cross multiply
    530,619.78x = 732,236.18 × 288,896.82
  4. Step 4: Simplify right side
    530,619.78x = 211,540,703,890.95
  5. Step 5: Solve for x
    x = 211,540,703,890.95/530,619.78
  6. Step 6: Final answer
    x = 398,667.20

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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.