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Finding the Fourth Proportional to 609,080.71, 913,107.34 and 383,945.00

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Solution

The fourth proportional to 609,080.71, 913,107.34 and 383,945.00 is: 575,593.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,080.71 : 913,107.34 = 383,945.00 : x
  2. Step 2: Convert to fraction form
    609,080.71/913,107.34 = 383,945.00/x
  3. Step 3: Cross multiply
    609,080.71x = 913,107.34 × 383,945.00
  4. Step 4: Simplify right side
    609,080.71x = 350,582,998,979.21
  5. Step 5: Solve for x
    x = 350,582,998,979.21/609,080.71
  6. Step 6: Final answer
    x = 575,593.67

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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.