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Finding the Fourth Proportional to 403,766.20, 605,649.30 and 373,353.40

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Solution

The fourth proportional to 403,766.20, 605,649.30 and 373,353.40 is: 560,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,766.20 : 605,649.30 = 373,353.40 : x
  2. Step 2: Convert to fraction form
    403,766.20/605,649.30 = 373,353.40/x
  3. Step 3: Cross multiply
    403,766.20x = 605,649.30 × 373,353.40
  4. Step 4: Simplify right side
    403,766.20x = 226,121,225,362.62
  5. Step 5: Solve for x
    x = 226,121,225,362.62/403,766.20
  6. Step 6: Final answer
    x = 560,030.10

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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.