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Finding the Fourth Proportional to 608,291.66, 839,105.79 and 353,614.70

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Solution

The fourth proportional to 608,291.66, 839,105.79 and 353,614.70 is: 487,792.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,291.66 : 839,105.79 = 353,614.70 : x
  2. Step 2: Convert to fraction form
    608,291.66/839,105.79 = 353,614.70/x
  3. Step 3: Cross multiply
    608,291.66x = 839,105.79 × 353,614.70
  4. Step 4: Simplify right side
    608,291.66x = 296,720,142,199.11
  5. Step 5: Solve for x
    x = 296,720,142,199.11/608,291.66
  6. Step 6: Final answer
    x = 487,792.55

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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.