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Finding the Fourth Proportional to 655,292.02, 904,332.09 and 368,830.66

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Solution

The fourth proportional to 655,292.02, 904,332.09 and 368,830.66 is: 509,002.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,292.02 : 904,332.09 = 368,830.66 : x
  2. Step 2: Convert to fraction form
    655,292.02/904,332.09 = 368,830.66/x
  3. Step 3: Cross multiply
    655,292.02x = 904,332.09 × 368,830.66
  4. Step 4: Simplify right side
    655,292.02x = 333,545,401,613.88
  5. Step 5: Solve for x
    x = 333,545,401,613.88/655,292.02
  6. Step 6: Final answer
    x = 509,002.69

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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.