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Finding the Fourth Proportional to 291,267.51, 402,073.55 and 195,829.56

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Solution

The fourth proportional to 291,267.51, 402,073.55 and 195,829.56 is: 270,328.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,267.51 : 402,073.55 = 195,829.56 : x
  2. Step 2: Convert to fraction form
    291,267.51/402,073.55 = 195,829.56/x
  3. Step 3: Cross multiply
    291,267.51x = 402,073.55 × 195,829.56
  4. Step 4: Simplify right side
    291,267.51x = 78,737,885,404.99
  5. Step 5: Solve for x
    x = 78,737,885,404.99/291,267.51
  6. Step 6: Final answer
    x = 270,328.42

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1.5x scale

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.