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Finding the Fourth Proportional to 289,876.18, 400,033.25 and 175,138.87

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Solution

The fourth proportional to 289,876.18, 400,033.25 and 175,138.87 is: 241,694.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,876.18 : 400,033.25 = 175,138.87 : x
  2. Step 2: Convert to fraction form
    289,876.18/400,033.25 = 175,138.87/x
  3. Step 3: Cross multiply
    289,876.18x = 400,033.25 × 175,138.87
  4. Step 4: Simplify right side
    289,876.18x = 70,061,370,805.19
  5. Step 5: Solve for x
    x = 70,061,370,805.19/289,876.18
  6. Step 6: Final answer
    x = 241,694.13

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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.