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Finding the Fourth Proportional to 360,513.14, 540,845.85 and 135,868.82

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Solution

The fourth proportional to 360,513.14, 540,845.85 and 135,868.82 is: 203,831.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,513.14 : 540,845.85 = 135,868.82 : x
  2. Step 2: Convert to fraction form
    360,513.14/540,845.85 = 135,868.82/x
  3. Step 3: Cross multiply
    360,513.14x = 540,845.85 × 135,868.82
  4. Step 4: Simplify right side
    360,513.14x = 73,484,087,441.40
  5. Step 5: Solve for x
    x = 73,484,087,441.40/360,513.14
  6. Step 6: Final answer
    x = 203,831.93

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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.