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Finding the Fourth Proportional to 366,955.10, 550,432.65 and 338,086.70

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Solution

The fourth proportional to 366,955.10, 550,432.65 and 338,086.70 is: 507,130.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,955.10 : 550,432.65 = 338,086.70 : x
  2. Step 2: Convert to fraction form
    366,955.10/550,432.65 = 338,086.70/x
  3. Step 3: Cross multiply
    366,955.10x = 550,432.65 × 338,086.70
  4. Step 4: Simplify right side
    366,955.10x = 186,093,958,210.76
  5. Step 5: Solve for x
    x = 186,093,958,210.76/366,955.10
  6. Step 6: Final answer
    x = 507,130.05

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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.