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Finding the Fourth Proportional to 403,551.86, 556,894.70 and 222,280.74

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Solution

The fourth proportional to 403,551.86, 556,894.70 and 222,280.74 is: 306,743.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,551.86 : 556,894.70 = 222,280.74 : x
  2. Step 2: Convert to fraction form
    403,551.86/556,894.70 = 222,280.74/x
  3. Step 3: Cross multiply
    403,551.86x = 556,894.70 × 222,280.74
  4. Step 4: Simplify right side
    403,551.86x = 123,786,966,018.08
  5. Step 5: Solve for x
    x = 123,786,966,018.08/403,551.86
  6. Step 6: Final answer
    x = 306,743.64

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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.