Home / 314,240.78-471,362.13-77,583.49

Finding the Fourth Proportional to 314,240.78, 471,362.13 and 77,583.49

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Solution

The fourth proportional to 314,240.78, 471,362.13 and 77,583.49 is: 116,375.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,240.78 : 471,362.13 = 77,583.49 : x
  2. Step 2: Convert to fraction form
    314,240.78/471,362.13 = 77,583.49/x
  3. Step 3: Cross multiply
    314,240.78x = 471,362.13 × 77,583.49
  4. Step 4: Simplify right side
    314,240.78x = 36,569,919,099.23
  5. Step 5: Solve for x
    x = 36,569,919,099.23/314,240.78
  6. Step 6: Final answer
    x = 116,375.47

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1.5x scale

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.