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Finding the Fourth Proportional to 269,895.48, 404,843.70 and 70,215.55

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Solution

The fourth proportional to 269,895.48, 404,843.70 and 70,215.55 is: 105,323.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,895.48 : 404,843.70 = 70,215.55 : x
  2. Step 2: Convert to fraction form
    269,895.48/404,843.70 = 70,215.55/x
  3. Step 3: Cross multiply
    269,895.48x = 404,843.70 × 70,215.55
  4. Step 4: Simplify right side
    269,895.48x = 28,426,323,059.54
  5. Step 5: Solve for x
    x = 28,426,323,059.54/269,895.48
  6. Step 6: Final answer
    x = 105,323.45

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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.