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Finding the Fourth Proportional to 368,993.52, 553,700.76 and 144,372.24

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Solution

The fourth proportional to 368,993.52, 553,700.76 and 144,372.24 is: 216,640.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,993.52 : 553,700.76 = 144,372.24 : x
  2. Step 2: Convert to fraction form
    368,993.52/553,700.76 = 144,372.24/x
  3. Step 3: Cross multiply
    368,993.52x = 553,700.76 × 144,372.24
  4. Step 4: Simplify right side
    368,993.52x = 79,939,019,010.90
  5. Step 5: Solve for x
    x = 79,939,019,010.90/368,993.52
  6. Step 6: Final answer
    x = 216,640.71

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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.