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Finding the Fourth Proportional to 604,427.80, 907,340.10 and 324,491.80

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Solution

The fourth proportional to 604,427.80, 907,340.10 and 324,491.80 is: 487,112.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,427.80 : 907,340.10 = 324,491.80 : x
  2. Step 2: Convert to fraction form
    604,427.80/907,340.10 = 324,491.80/x
  3. Step 3: Cross multiply
    604,427.80x = 907,340.10 × 324,491.80
  4. Step 4: Simplify right side
    604,427.80x = 294,424,422,261.18
  5. Step 5: Solve for x
    x = 294,424,422,261.18/604,427.80
  6. Step 6: Final answer
    x = 487,112.64

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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.