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Finding the Fourth Proportional to 269,570.05, 404,355.08 and 256,448.05

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Solution

The fourth proportional to 269,570.05, 404,355.08 and 256,448.05 is: 384,672.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,570.05 : 404,355.08 = 256,448.05 : x
  2. Step 2: Convert to fraction form
    269,570.05/404,355.08 = 256,448.05/x
  3. Step 3: Cross multiply
    269,570.05x = 404,355.08 × 256,448.05
  4. Step 4: Simplify right side
    269,570.05x = 103,696,070,491.35
  5. Step 5: Solve for x
    x = 103,696,070,491.35/269,570.05
  6. Step 6: Final answer
    x = 384,672.08

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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.