Home / 385,284.57-577,783.18-132,493.49

Finding the Fourth Proportional to 385,284.57, 577,783.18 and 132,493.49

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Solution

The fourth proportional to 385,284.57, 577,783.18 and 132,493.49 is: 198,690.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,284.57 : 577,783.18 = 132,493.49 : x
  2. Step 2: Convert to fraction form
    385,284.57/577,783.18 = 132,493.49/x
  3. Step 3: Cross multiply
    385,284.57x = 577,783.18 × 132,493.49
  4. Step 4: Simplify right side
    385,284.57x = 76,552,508,679.61
  5. Step 5: Solve for x
    x = 76,552,508,679.61/385,284.57
  6. Step 6: Final answer
    x = 198,690.83

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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.