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Finding the Fourth Proportional to 366,938.10, 550,407.15 and 338,069.70

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Solution

The fourth proportional to 366,938.10, 550,407.15 and 338,069.70 is: 507,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,938.10 : 550,407.15 = 338,069.70 : x
  2. Step 2: Convert to fraction form
    366,938.10/550,407.15 = 338,069.70/x
  3. Step 3: Cross multiply
    366,938.10x = 550,407.15 × 338,069.70
  4. Step 4: Simplify right side
    366,938.10x = 186,075,980,078.36
  5. Step 5: Solve for x
    x = 186,075,980,078.36/366,938.10
  6. Step 6: Final answer
    x = 507,104.55

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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.