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Finding the Fourth Proportional to 217,417.10, 304,936.90 and 217,417.10

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Solution

The fourth proportional to 217,417.10, 304,936.90 and 217,417.10 is: 304,936.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,417.10 : 304,936.90 = 217,417.10 : x
  2. Step 2: Convert to fraction form
    217,417.10/304,936.90 = 217,417.10/x
  3. Step 3: Cross multiply
    217,417.10x = 304,936.90 × 217,417.10
  4. Step 4: Simplify right side
    217,417.10x = 66,298,496,480.99
  5. Step 5: Solve for x
    x = 66,298,496,480.99/217,417.10
  6. Step 6: Final answer
    x = 304,936.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.