Home / 530,173.69-731,647.19-288,456.43

Finding the Fourth Proportional to 530,173.69, 731,647.19 and 288,456.43

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Solution

The fourth proportional to 530,173.69, 731,647.19 and 288,456.43 is: 398,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,173.69 : 731,647.19 = 288,456.43 : x
  2. Step 2: Convert to fraction form
    530,173.69/731,647.19 = 288,456.43/x
  3. Step 3: Cross multiply
    530,173.69x = 731,647.19 × 288,456.43
  4. Step 4: Simplify right side
    530,173.69x = 211,048,336,446.93
  5. Step 5: Solve for x
    x = 211,048,336,446.93/530,173.69
  6. Step 6: Final answer
    x = 398,073.95

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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.