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Finding the Fourth Proportional to 366,937.10, 550,405.65 and 338,068.70

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Solution

The fourth proportional to 366,937.10, 550,405.65 and 338,068.70 is: 507,103.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,937.10 : 550,405.65 = 338,068.70 : x
  2. Step 2: Convert to fraction form
    366,937.10/550,405.65 = 338,068.70/x
  3. Step 3: Cross multiply
    366,937.10x = 550,405.65 × 338,068.70
  4. Step 4: Simplify right side
    366,937.10x = 186,074,922,568.16
  5. Step 5: Solve for x
    x = 186,074,922,568.16/366,937.10
  6. Step 6: Final answer
    x = 507,103.05

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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.