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Finding the Fourth Proportional to 475,639.26, 655,869.39 and 361,127.94

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Solution

The fourth proportional to 475,639.26, 655,869.39 and 361,127.94 is: 497,967.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,639.26 : 655,869.39 = 361,127.94 : x
  2. Step 2: Convert to fraction form
    475,639.26/655,869.39 = 361,127.94/x
  3. Step 3: Cross multiply
    475,639.26x = 655,869.39 × 361,127.94
  4. Step 4: Simplify right side
    475,639.26x = 236,852,761,719.76
  5. Step 5: Solve for x
    x = 236,852,761,719.76/475,639.26
  6. Step 6: Final answer
    x = 497,967.22

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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.