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Finding the Fourth Proportional to 362,291.40, 543,436.92 and 137,651.76

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Solution

The fourth proportional to 362,291.40, 543,436.92 and 137,651.76 is: 206,477.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,291.40 : 543,436.92 = 137,651.76 : x
  2. Step 2: Convert to fraction form
    362,291.40/543,436.92 = 137,651.76/x
  3. Step 3: Cross multiply
    362,291.40x = 543,436.92 × 137,651.76
  4. Step 4: Simplify right side
    362,291.40x = 74,805,048,486.98
  5. Step 5: Solve for x
    x = 74,805,048,486.98/362,291.40
  6. Step 6: Final answer
    x = 206,477.57

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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.