Home / 530,262.72-731,747.84-288,539.69

Finding the Fourth Proportional to 530,262.72, 731,747.84 and 288,539.69

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Solution

The fourth proportional to 530,262.72, 731,747.84 and 288,539.69 is: 398,176.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,262.72 : 731,747.84 = 288,539.69 : x
  2. Step 2: Convert to fraction form
    530,262.72/731,747.84 = 288,539.69/x
  3. Step 3: Cross multiply
    530,262.72x = 731,747.84 × 288,539.69
  4. Step 4: Simplify right side
    530,262.72x = 211,138,289,810.33
  5. Step 5: Solve for x
    x = 211,138,289,810.33/530,262.72
  6. Step 6: Final answer
    x = 398,176.76

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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.