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Finding the Fourth Proportional to 604,932.80, 906,362.40 and 394,462.40

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Solution

The fourth proportional to 604,932.80, 906,362.40 and 394,462.40 is: 591,017.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,932.80 : 906,362.40 = 394,462.40 : x
  2. Step 2: Convert to fraction form
    604,932.80/906,362.40 = 394,462.40/x
  3. Step 3: Cross multiply
    604,932.80x = 906,362.40 × 394,462.40
  4. Step 4: Simplify right side
    604,932.80x = 357,525,887,573.76
  5. Step 5: Solve for x
    x = 357,525,887,573.76/604,932.80
  6. Step 6: Final answer
    x = 591,017.53

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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.