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Finding the Fourth Proportional to 495,047.97, 683,109.45 and 277,226.28

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Solution

The fourth proportional to 495,047.97, 683,109.45 and 277,226.28 is: 382,540.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,047.97 : 683,109.45 = 277,226.28 : x
  2. Step 2: Convert to fraction form
    495,047.97/683,109.45 = 277,226.28/x
  3. Step 3: Cross multiply
    495,047.97x = 683,109.45 × 277,226.28
  4. Step 4: Simplify right side
    495,047.97x = 189,375,891,656.35
  5. Step 5: Solve for x
    x = 189,375,891,656.35/495,047.97
  6. Step 6: Final answer
    x = 382,540.49

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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.