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Finding the Fourth Proportional to 604,619.96, 906,541.14 and 289,069.88

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Solution

The fourth proportional to 604,619.96, 906,541.14 and 289,069.88 is: 433,418.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,619.96 : 906,541.14 = 289,069.88 : x
  2. Step 2: Convert to fraction form
    604,619.96/906,541.14 = 289,069.88/x
  3. Step 3: Cross multiply
    604,619.96x = 906,541.14 × 289,069.88
  4. Step 4: Simplify right side
    604,619.96x = 262,053,738,554.86
  5. Step 5: Solve for x
    x = 262,053,738,554.86/604,619.96
  6. Step 6: Final answer
    x = 433,418.93

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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.