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Finding the Fourth Proportional to 468,351.60, 646,325.16 and 253,491.62

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Solution

The fourth proportional to 468,351.60, 646,325.16 and 253,491.62 is: 349,818.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,351.60 : 646,325.16 = 253,491.62 : x
  2. Step 2: Convert to fraction form
    468,351.60/646,325.16 = 253,491.62/x
  3. Step 3: Cross multiply
    468,351.60x = 646,325.16 × 253,491.62
  4. Step 4: Simplify right side
    468,351.60x = 163,838,011,855.16
  5. Step 5: Solve for x
    x = 163,838,011,855.16/468,351.60
  6. Step 6: Final answer
    x = 349,818.41

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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.