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Finding the Fourth Proportional to 369,616.80, 554,425.20 and 341,623.20

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Solution

The fourth proportional to 369,616.80, 554,425.20 and 341,623.20 is: 512,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,616.80 : 554,425.20 = 341,623.20 : x
  2. Step 2: Convert to fraction form
    369,616.80/554,425.20 = 341,623.20/x
  3. Step 3: Cross multiply
    369,616.80x = 554,425.20 × 341,623.20
  4. Step 4: Simplify right side
    369,616.80x = 189,404,510,984.64
  5. Step 5: Solve for x
    x = 189,404,510,984.64/369,616.80
  6. Step 6: Final answer
    x = 512,434.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.