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Finding the Fourth Proportional to 655,523.72, 904,620.12 and 369,044.36

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Solution

The fourth proportional to 655,523.72, 904,620.12 and 369,044.36 is: 509,279.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,523.72 : 904,620.12 = 369,044.36 : x
  2. Step 2: Convert to fraction form
    655,523.72/904,620.12 = 369,044.36/x
  3. Step 3: Cross multiply
    655,523.72x = 904,620.12 × 369,044.36
  4. Step 4: Simplify right side
    655,523.72x = 333,844,953,228.52
  5. Step 5: Solve for x
    x = 333,844,953,228.52/655,523.72
  6. Step 6: Final answer
    x = 509,279.75

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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.