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Finding the Fourth Proportional to 401,812.14, 554,520.87 and 220,522.49

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Solution

The fourth proportional to 401,812.14, 554,520.87 and 220,522.49 is: 304,332.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,812.14 : 554,520.87 = 220,522.49 : x
  2. Step 2: Convert to fraction form
    401,812.14/554,520.87 = 220,522.49/x
  3. Step 3: Cross multiply
    401,812.14x = 554,520.87 × 220,522.49
  4. Step 4: Simplify right side
    401,812.14x = 122,284,322,316.22
  5. Step 5: Solve for x
    x = 122,284,322,316.22/401,812.14
  6. Step 6: Final answer
    x = 304,332.07

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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.