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Finding the Fourth Proportional to 629,278.39, 943,916.88 and 155,963.77

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Solution

The fourth proportional to 629,278.39, 943,916.88 and 155,963.77 is: 233,945.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,278.39 : 943,916.88 = 155,963.77 : x
  2. Step 2: Convert to fraction form
    629,278.39/943,916.88 = 155,963.77/x
  3. Step 3: Cross multiply
    629,278.39x = 943,916.88 × 155,963.77
  4. Step 4: Simplify right side
    629,278.39x = 147,216,835,171.44
  5. Step 5: Solve for x
    x = 147,216,835,171.44/629,278.39
  6. Step 6: Final answer
    x = 233,945.48

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Double scale
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1.5x scale

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.