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Finding the Fourth Proportional to 474,981.62, 655,475.63 and 257,192.66

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Solution

The fourth proportional to 474,981.62, 655,475.63 and 257,192.66 is: 354,926.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,981.62 : 655,475.63 = 257,192.66 : x
  2. Step 2: Convert to fraction form
    474,981.62/655,475.63 = 257,192.66/x
  3. Step 3: Cross multiply
    474,981.62x = 655,475.63 × 257,192.66
  4. Step 4: Simplify right side
    474,981.62x = 168,583,521,197.60
  5. Step 5: Solve for x
    x = 168,583,521,197.60/474,981.62
  6. Step 6: Final answer
    x = 354,926.41

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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.