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Finding the Fourth Proportional to 604,912.24, 907,928.76 and 305,603.68

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Solution

The fourth proportional to 604,912.24, 907,928.76 and 305,603.68 is: 458,688.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,912.24 : 907,928.76 = 305,603.68 : x
  2. Step 2: Convert to fraction form
    604,912.24/907,928.76 = 305,603.68/x
  3. Step 3: Cross multiply
    604,912.24x = 907,928.76 × 305,603.68
  4. Step 4: Simplify right side
    604,912.24x = 277,466,370,233.84
  5. Step 5: Solve for x
    x = 277,466,370,233.84/604,912.24
  6. Step 6: Final answer
    x = 458,688.64

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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.