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Finding the Fourth Proportional to 655,212.76, 904,044.01 and 368,628.28

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Solution

The fourth proportional to 655,212.76, 904,044.01 and 368,628.28 is: 508,622.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,212.76 : 904,044.01 = 368,628.28 : x
  2. Step 2: Convert to fraction form
    655,212.76/904,044.01 = 368,628.28/x
  3. Step 3: Cross multiply
    655,212.76x = 904,044.01 × 368,628.28
  4. Step 4: Simplify right side
    655,212.76x = 333,256,185,268.92
  5. Step 5: Solve for x
    x = 333,256,185,268.92/655,212.76
  6. Step 6: Final answer
    x = 508,622.86

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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.