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Finding the Fourth Proportional to 292,963.30, 404,287.41 and 165,639.40

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Solution

The fourth proportional to 292,963.30, 404,287.41 and 165,639.40 is: 228,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,963.30 : 404,287.41 = 165,639.40 : x
  2. Step 2: Convert to fraction form
    292,963.30/404,287.41 = 165,639.40/x
  3. Step 3: Cross multiply
    292,963.30x = 404,287.41 × 165,639.40
  4. Step 4: Simplify right side
    292,963.30x = 66,965,924,019.95
  5. Step 5: Solve for x
    x = 66,965,924,019.95/292,963.30
  6. Step 6: Final answer
    x = 228,581.27

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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.