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Finding the Fourth Proportional to 366,966.45, 550,449.68 and 209,502.45

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Solution

The fourth proportional to 366,966.45, 550,449.68 and 209,502.45 is: 314,253.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,966.45 : 550,449.68 = 209,502.45 : x
  2. Step 2: Convert to fraction form
    366,966.45/550,449.68 = 209,502.45/x
  3. Step 3: Cross multiply
    366,966.45x = 550,449.68 × 209,502.45
  4. Step 4: Simplify right side
    366,966.45x = 115,320,556,561.72
  5. Step 5: Solve for x
    x = 115,320,556,561.72/366,966.45
  6. Step 6: Final answer
    x = 314,253.68

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1.5x scale

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.