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Finding the Fourth Proportional to 403,363.60, 605,045.40 and 254,064.40

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Solution

The fourth proportional to 403,363.60, 605,045.40 and 254,064.40 is: 381,096.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,363.60 : 605,045.40 = 254,064.40 : x
  2. Step 2: Convert to fraction form
    403,363.60/605,045.40 = 254,064.40/x
  3. Step 3: Cross multiply
    403,363.60x = 605,045.40 × 254,064.40
  4. Step 4: Simplify right side
    403,363.60x = 153,720,496,523.76
  5. Step 5: Solve for x
    x = 153,720,496,523.76/403,363.60
  6. Step 6: Final answer
    x = 381,096.60

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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.