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Finding the Fourth Proportional to 478,833.66, 660,773.44 and 261,037.83

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Solution

The fourth proportional to 478,833.66, 660,773.44 and 261,037.83 is: 360,222.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,833.66 : 660,773.44 = 261,037.83 : x
  2. Step 2: Convert to fraction form
    478,833.66/660,773.44 = 261,037.83/x
  3. Step 3: Cross multiply
    478,833.66x = 660,773.44 × 261,037.83
  4. Step 4: Simplify right side
    478,833.66x = 172,486,864,899.24
  5. Step 5: Solve for x
    x = 172,486,864,899.24/478,833.66
  6. Step 6: Final answer
    x = 360,222.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.