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Finding the Fourth Proportional to 403,344.72, 556,605.54 and 222,054.84

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Solution

The fourth proportional to 403,344.72, 556,605.54 and 222,054.84 is: 306,430.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,344.72 : 556,605.54 = 222,054.84 : x
  2. Step 2: Convert to fraction form
    403,344.72/556,605.54 = 222,054.84/x
  3. Step 3: Cross multiply
    403,344.72x = 556,605.54 × 222,054.84
  4. Step 4: Simplify right side
    403,344.72x = 123,596,954,127.81
  5. Step 5: Solve for x
    x = 123,596,954,127.81/403,344.72
  6. Step 6: Final answer
    x = 306,430.08

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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.