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Finding the Fourth Proportional to 604,354.40, 907,231.80 and 324,418.40

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Solution

The fourth proportional to 604,354.40, 907,231.80 and 324,418.40 is: 487,003.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,354.40 : 907,231.80 = 324,418.40 : x
  2. Step 2: Convert to fraction form
    604,354.40/907,231.80 = 324,418.40/x
  3. Step 3: Cross multiply
    604,354.40x = 907,231.80 × 324,418.40
  4. Step 4: Simplify right side
    604,354.40x = 294,322,688,985.12
  5. Step 5: Solve for x
    x = 294,322,688,985.12/604,354.40
  6. Step 6: Final answer
    x = 487,003.47

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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.