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Finding the Fourth Proportional to 417,941.32, 576,765.90 and 236,648.47

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Solution

The fourth proportional to 417,941.32, 576,765.90 and 236,648.47 is: 326,578.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,941.32 : 576,765.90 = 236,648.47 : x
  2. Step 2: Convert to fraction form
    417,941.32/576,765.90 = 236,648.47/x
  3. Step 3: Cross multiply
    417,941.32x = 576,765.90 × 236,648.47
  4. Step 4: Simplify right side
    417,941.32x = 136,490,767,783.17
  5. Step 5: Solve for x
    x = 136,490,767,783.17/417,941.32
  6. Step 6: Final answer
    x = 326,578.78

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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.