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Finding the Fourth Proportional to 401,365.84, 553,885.64 and 222,517.84

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Solution

The fourth proportional to 401,365.84, 553,885.64 and 222,517.84 is: 307,075.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,365.84 : 553,885.64 = 222,517.84 : x
  2. Step 2: Convert to fraction form
    401,365.84/553,885.64 = 222,517.84/x
  3. Step 3: Cross multiply
    401,365.84x = 553,885.64 × 222,517.84
  4. Step 4: Simplify right side
    401,365.84x = 123,249,436,219.82
  5. Step 5: Solve for x
    x = 123,249,436,219.82/401,365.84
  6. Step 6: Final answer
    x = 307,075.05

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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.