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Finding the Fourth Proportional to 404,278.70, 557,834.99 and 259,211.34

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Solution

The fourth proportional to 404,278.70, 557,834.99 and 259,211.34 is: 357,667.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,278.70 : 557,834.99 = 259,211.34 : x
  2. Step 2: Convert to fraction form
    404,278.70/557,834.99 = 259,211.34/x
  3. Step 3: Cross multiply
    404,278.70x = 557,834.99 × 259,211.34
  4. Step 4: Simplify right side
    404,278.70x = 144,597,153,960.73
  5. Step 5: Solve for x
    x = 144,597,153,960.73/404,278.70
  6. Step 6: Final answer
    x = 357,667.01

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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.