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Finding the Fourth Proportional to 352,460.85, 486,404.61 and 191,315.49

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Solution

The fourth proportional to 352,460.85, 486,404.61 and 191,315.49 is: 264,020.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,460.85 : 486,404.61 = 191,315.49 : x
  2. Step 2: Convert to fraction form
    352,460.85/486,404.61 = 191,315.49/x
  3. Step 3: Cross multiply
    352,460.85x = 486,404.61 × 191,315.49
  4. Step 4: Simplify right side
    352,460.85x = 93,056,736,300.41
  5. Step 5: Solve for x
    x = 93,056,736,300.41/352,460.85
  6. Step 6: Final answer
    x = 264,020.06

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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.