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Finding the Fourth Proportional to 386,333.66, 578,805.43 and 363,543.75

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Solution

The fourth proportional to 386,333.66, 578,805.43 and 363,543.75 is: 544,661.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,333.66 : 578,805.43 = 363,543.75 : x
  2. Step 2: Convert to fraction form
    386,333.66/578,805.43 = 363,543.75/x
  3. Step 3: Cross multiply
    386,333.66x = 578,805.43 × 363,543.75
  4. Step 4: Simplify right side
    386,333.66x = 210,421,096,542.56
  5. Step 5: Solve for x
    x = 210,421,096,542.56/386,333.66
  6. Step 6: Final answer
    x = 544,661.57

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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.