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Finding the Fourth Proportional to 608,156.74, 839,389.53 and 353,654.74

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Solution

The fourth proportional to 608,156.74, 839,389.53 and 353,654.74 is: 488,121.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,156.74 : 839,389.53 = 353,654.74 : x
  2. Step 2: Convert to fraction form
    608,156.74/839,389.53 = 353,654.74/x
  3. Step 3: Cross multiply
    608,156.74x = 839,389.53 × 353,654.74
  4. Step 4: Simplify right side
    608,156.74x = 296,854,085,990.87
  5. Step 5: Solve for x
    x = 296,854,085,990.87/608,156.74
  6. Step 6: Final answer
    x = 488,121.02

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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.