Home / 452,580.14-678,870.19-115,621.52

Finding the Fourth Proportional to 452,580.14, 678,870.19 and 115,621.52

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Solution

The fourth proportional to 452,580.14, 678,870.19 and 115,621.52 is: 173,432.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,580.14 : 678,870.19 = 115,621.52 : x
  2. Step 2: Convert to fraction form
    452,580.14/678,870.19 = 115,621.52/x
  3. Step 3: Cross multiply
    452,580.14x = 678,870.19 × 115,621.52
  4. Step 4: Simplify right side
    452,580.14x = 78,492,002,672.38
  5. Step 5: Solve for x
    x = 78,492,002,672.38/452,580.14
  6. Step 6: Final answer
    x = 173,432.28

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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.