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Finding the Fourth Proportional to 484,726.80, 727,090.20 and 335,427.60

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Solution

The fourth proportional to 484,726.80, 727,090.20 and 335,427.60 is: 503,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,726.80 : 727,090.20 = 335,427.60 : x
  2. Step 2: Convert to fraction form
    484,726.80/727,090.20 = 335,427.60/x
  3. Step 3: Cross multiply
    484,726.80x = 727,090.20 × 335,427.60
  4. Step 4: Simplify right side
    484,726.80x = 243,886,120,769.52
  5. Step 5: Solve for x
    x = 243,886,120,769.52/484,726.80
  6. Step 6: Final answer
    x = 503,141.40

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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.