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Finding the Fourth Proportional to 303,113.30, 418,295.49 and 175,863.38

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Solution

The fourth proportional to 303,113.30, 418,295.49 and 175,863.38 is: 242,690.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,113.30 : 418,295.49 = 175,863.38 : x
  2. Step 2: Convert to fraction form
    303,113.30/418,295.49 = 175,863.38/x
  3. Step 3: Cross multiply
    303,113.30x = 418,295.49 × 175,863.38
  4. Step 4: Simplify right side
    303,113.30x = 73,562,858,710.16
  5. Step 5: Solve for x
    x = 73,562,858,710.16/303,113.30
  6. Step 6: Final answer
    x = 242,690.96

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1.5x scale

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.