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Finding the Fourth Proportional to 604,430.80, 907,344.60 and 324,494.80

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Solution

The fourth proportional to 604,430.80, 907,344.60 and 324,494.80 is: 487,117.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,430.80 : 907,344.60 = 324,494.80 : x
  2. Step 2: Convert to fraction form
    604,430.80/907,344.60 = 324,494.80/x
  3. Step 3: Cross multiply
    604,430.80x = 907,344.60 × 324,494.80
  4. Step 4: Simplify right side
    604,430.80x = 294,428,604,508.08
  5. Step 5: Solve for x
    x = 294,428,604,508.08/604,430.80
  6. Step 6: Final answer
    x = 487,117.14

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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.