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Finding the Fourth Proportional to 359,264.20, 538,232.10 and 209,576.20

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Solution

The fourth proportional to 359,264.20, 538,232.10 and 209,576.20 is: 313,976.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,264.20 : 538,232.10 = 209,576.20 : x
  2. Step 2: Convert to fraction form
    359,264.20/538,232.10 = 209,576.20/x
  3. Step 3: Cross multiply
    359,264.20x = 538,232.10 × 209,576.20
  4. Step 4: Simplify right side
    359,264.20x = 112,800,638,236.02
  5. Step 5: Solve for x
    x = 112,800,638,236.02/359,264.20
  6. Step 6: Final answer
    x = 313,976.84

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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.