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Finding the Fourth Proportional to 644,925.20, 966,696.60 and 245,411.60

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Solution

The fourth proportional to 644,925.20, 966,696.60 and 245,411.60 is: 367,854.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,925.20 : 966,696.60 = 245,411.60 : x
  2. Step 2: Convert to fraction form
    644,925.20/966,696.60 = 245,411.60/x
  3. Step 3: Cross multiply
    644,925.20x = 966,696.60 × 245,411.60
  4. Step 4: Simplify right side
    644,925.20x = 237,238,559,320.56
  5. Step 5: Solve for x
    x = 237,238,559,320.56/644,925.20
  6. Step 6: Final answer
    x = 367,854.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.