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Finding the Fourth Proportional to 474,790.86, 655,208.22 and 259,934.53

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Solution

The fourth proportional to 474,790.86, 655,208.22 and 259,934.53 is: 358,707.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,790.86 : 655,208.22 = 259,934.53 : x
  2. Step 2: Convert to fraction form
    474,790.86/655,208.22 = 259,934.53/x
  3. Step 3: Cross multiply
    474,790.86x = 655,208.22 × 259,934.53
  4. Step 4: Simplify right side
    474,790.86x = 170,311,240,717.84
  5. Step 5: Solve for x
    x = 170,311,240,717.84/474,790.86
  6. Step 6: Final answer
    x = 358,707.92

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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.