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Finding the Fourth Proportional to 666,023.05, 919,532.08 and 462,002.61

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Solution

The fourth proportional to 666,023.05, 919,532.08 and 462,002.61 is: 637,855.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,023.05 : 919,532.08 = 462,002.61 : x
  2. Step 2: Convert to fraction form
    666,023.05/919,532.08 = 462,002.61/x
  3. Step 3: Cross multiply
    666,023.05x = 919,532.08 × 462,002.61
  4. Step 4: Simplify right side
    666,023.05x = 424,826,220,938.73
  5. Step 5: Solve for x
    x = 424,826,220,938.73/666,023.05
  6. Step 6: Final answer
    x = 637,855.13

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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.