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Finding the Fourth Proportional to 341,755.20, 472,247.28 and 296,287.20

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Solution

The fourth proportional to 341,755.20, 472,247.28 and 296,287.20 is: 409,418.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,755.20 : 472,247.28 = 296,287.20 : x
  2. Step 2: Convert to fraction form
    341,755.20/472,247.28 = 296,287.20/x
  3. Step 3: Cross multiply
    341,755.20x = 472,247.28 × 296,287.20
  4. Step 4: Simplify right side
    341,755.20x = 139,920,824,298.82
  5. Step 5: Solve for x
    x = 139,920,824,298.82/341,755.20
  6. Step 6: Final answer
    x = 409,418.27

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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.