Home / 403,905.42-605,836.19-123,422.67

Finding the Fourth Proportional to 403,905.42, 605,836.19 and 123,422.67

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Solution

The fourth proportional to 403,905.42, 605,836.19 and 123,422.67 is: 185,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,905.42 : 605,836.19 = 123,422.67 : x
  2. Step 2: Convert to fraction form
    403,905.42/605,836.19 = 123,422.67/x
  3. Step 3: Cross multiply
    403,905.42x = 605,836.19 × 123,422.67
  4. Step 4: Simplify right side
    403,905.42x = 74,773,920,460.98
  5. Step 5: Solve for x
    x = 74,773,920,460.98/403,905.42
  6. Step 6: Final answer
    x = 185,127.30

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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.