Home / 467,317.89-644,475.29-306,114.12

Finding the Fourth Proportional to 467,317.89, 644,475.29 and 306,114.12

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Solution

The fourth proportional to 467,317.89, 644,475.29 and 306,114.12 is: 422,160.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,317.89 : 644,475.29 = 306,114.12 : x
  2. Step 2: Convert to fraction form
    467,317.89/644,475.29 = 306,114.12/x
  3. Step 3: Cross multiply
    467,317.89x = 644,475.29 × 306,114.12
  4. Step 4: Simplify right side
    467,317.89x = 197,282,984,729.52
  5. Step 5: Solve for x
    x = 197,282,984,729.52/467,317.89
  6. Step 6: Final answer
    x = 422,160.14

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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.