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Finding the Fourth Proportional to 350,618.40, 526,964.40 and 304,999.20

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Solution

The fourth proportional to 350,618.40, 526,964.40 and 304,999.20 is: 458,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,618.40 : 526,964.40 = 304,999.20 : x
  2. Step 2: Convert to fraction form
    350,618.40/526,964.40 = 304,999.20/x
  3. Step 3: Cross multiply
    350,618.40x = 526,964.40 × 304,999.20
  4. Step 4: Simplify right side
    350,618.40x = 160,723,720,428.48
  5. Step 5: Solve for x
    x = 160,723,720,428.48/350,618.40
  6. Step 6: Final answer
    x = 458,400.70

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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.