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Finding the Fourth Proportional to 366,980.10, 550,470.15 and 340,408.05

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Solution

The fourth proportional to 366,980.10, 550,470.15 and 340,408.05 is: 510,612.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,980.10 : 550,470.15 = 340,408.05 : x
  2. Step 2: Convert to fraction form
    366,980.10/550,470.15 = 340,408.05/x
  3. Step 3: Cross multiply
    366,980.10x = 550,470.15 × 340,408.05
  4. Step 4: Simplify right side
    366,980.10x = 187,384,470,344.71
  5. Step 5: Solve for x
    x = 187,384,470,344.71/366,980.10
  6. Step 6: Final answer
    x = 510,612.08

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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.