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Finding the Fourth Proportional to 411,415.72, 567,806.28 and 230,137.72

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Solution

The fourth proportional to 411,415.72, 567,806.28 and 230,137.72 is: 317,619.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,415.72 : 567,806.28 = 230,137.72 : x
  2. Step 2: Convert to fraction form
    411,415.72/567,806.28 = 230,137.72/x
  3. Step 3: Cross multiply
    411,415.72x = 567,806.28 × 230,137.72
  4. Step 4: Simplify right side
    411,415.72x = 130,673,642,680.88
  5. Step 5: Solve for x
    x = 130,673,642,680.88/411,415.72
  6. Step 6: Final answer
    x = 317,619.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.