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Finding the Fourth Proportional to 403,612.54, 556,982.72 and 222,320.27

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Solution

The fourth proportional to 403,612.54, 556,982.72 and 222,320.27 is: 306,800.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,612.54 : 556,982.72 = 222,320.27 : x
  2. Step 2: Convert to fraction form
    403,612.54/556,982.72 = 222,320.27/x
  3. Step 3: Cross multiply
    403,612.54x = 556,982.72 × 222,320.27
  4. Step 4: Simplify right side
    403,612.54x = 123,828,546,677.26
  5. Step 5: Solve for x
    x = 123,828,546,677.26/403,612.54
  6. Step 6: Final answer
    x = 306,800.54

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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.