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Finding the Fourth Proportional to 409,530.80, 614,296.20 and 366,228.20

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Solution

The fourth proportional to 409,530.80, 614,296.20 and 366,228.20 is: 549,342.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,530.80 : 614,296.20 = 366,228.20 : x
  2. Step 2: Convert to fraction form
    409,530.80/614,296.20 = 366,228.20/x
  3. Step 3: Cross multiply
    409,530.80x = 614,296.20 × 366,228.20
  4. Step 4: Simplify right side
    409,530.80x = 224,972,591,592.84
  5. Step 5: Solve for x
    x = 224,972,591,592.84/409,530.80
  6. Step 6: Final answer
    x = 549,342.30

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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.