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Finding the Fourth Proportional to 403,684.80, 605,527.20 and 277,713.60

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Solution

The fourth proportional to 403,684.80, 605,527.20 and 277,713.60 is: 416,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,684.80 : 605,527.20 = 277,713.60 : x
  2. Step 2: Convert to fraction form
    403,684.80/605,527.20 = 277,713.60/x
  3. Step 3: Cross multiply
    403,684.80x = 605,527.20 × 277,713.60
  4. Step 4: Simplify right side
    403,684.80x = 168,163,138,609.92
  5. Step 5: Solve for x
    x = 168,163,138,609.92/403,684.80
  6. Step 6: Final answer
    x = 416,570.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.