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Finding the Fourth Proportional to 449,722.06, 674,391.04 and 260,313.17

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Solution

The fourth proportional to 449,722.06, 674,391.04 and 260,313.17 is: 390,358.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,722.06 : 674,391.04 = 260,313.17 : x
  2. Step 2: Convert to fraction form
    449,722.06/674,391.04 = 260,313.17/x
  3. Step 3: Cross multiply
    449,722.06x = 674,391.04 × 260,313.17
  4. Step 4: Simplify right side
    449,722.06x = 175,552,865,419.26
  5. Step 5: Solve for x
    x = 175,552,865,419.26/449,722.06
  6. Step 6: Final answer
    x = 390,358.58

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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.