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Finding the Fourth Proportional to 700,694.06, 966,957.66 and 378,404.10

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Solution

The fourth proportional to 700,694.06, 966,957.66 and 378,404.10 is: 522,197.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,694.06 : 966,957.66 = 378,404.10 : x
  2. Step 2: Convert to fraction form
    700,694.06/966,957.66 = 378,404.10/x
  3. Step 3: Cross multiply
    700,694.06x = 966,957.66 × 378,404.10
  4. Step 4: Simplify right side
    700,694.06x = 365,900,743,070.41
  5. Step 5: Solve for x
    x = 365,900,743,070.41/700,694.06
  6. Step 6: Final answer
    x = 522,197.58

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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.