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Finding the Fourth Proportional to 411,087.44, 616,672.20 and 111,572.84

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Solution

The fourth proportional to 411,087.44, 616,672.20 and 111,572.84 is: 167,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,087.44 : 616,672.20 = 111,572.84 : x
  2. Step 2: Convert to fraction form
    411,087.44/616,672.20 = 111,572.84/x
  3. Step 3: Cross multiply
    411,087.44x = 616,672.20 × 111,572.84
  4. Step 4: Simplify right side
    411,087.44x = 68,803,868,703.05
  5. Step 5: Solve for x
    x = 68,803,868,703.05/411,087.44
  6. Step 6: Final answer
    x = 167,370.40

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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.