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Finding the Fourth Proportional to 401,792.36, 554,471.72 and 220,507.22

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Solution

The fourth proportional to 401,792.36, 554,471.72 and 220,507.22 is: 304,299.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,792.36 : 554,471.72 = 220,507.22 : x
  2. Step 2: Convert to fraction form
    401,792.36/554,471.72 = 220,507.22/x
  3. Step 3: Cross multiply
    401,792.36x = 554,471.72 × 220,507.22
  4. Step 4: Simplify right side
    401,792.36x = 122,265,017,545.82
  5. Step 5: Solve for x
    x = 122,265,017,545.82/401,792.36
  6. Step 6: Final answer
    x = 304,299.01

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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.