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Finding the Fourth Proportional to 655,873.16, 981,587.57 and 403,313.61

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Solution

The fourth proportional to 655,873.16, 981,587.57 and 403,313.61 is: 603,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,873.16 : 981,587.57 = 403,313.61 : x
  2. Step 2: Convert to fraction form
    655,873.16/981,587.57 = 403,313.61/x
  3. Step 3: Cross multiply
    655,873.16x = 981,587.57 × 403,313.61
  4. Step 4: Simplify right side
    655,873.16x = 395,887,626,387.83
  5. Step 5: Solve for x
    x = 395,887,626,387.83/655,873.16
  6. Step 6: Final answer
    x = 603,603.94

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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.