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Finding the Fourth Proportional to 604,806.80, 906,615.41 and 289,189.89

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Solution

The fourth proportional to 604,806.80, 906,615.41 and 289,189.89 is: 433,500.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,806.80 : 906,615.41 = 289,189.89 : x
  2. Step 2: Convert to fraction form
    604,806.80/906,615.41 = 289,189.89/x
  3. Step 3: Cross multiply
    604,806.80x = 906,615.41 × 289,189.89
  4. Step 4: Simplify right side
    604,806.80x = 262,184,009,244.26
  5. Step 5: Solve for x
    x = 262,184,009,244.26/604,806.80
  6. Step 6: Final answer
    x = 433,500.44

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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.