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Finding the Fourth Proportional to 495,686.01, 684,044.28 and 280,825.59

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Solution

The fourth proportional to 495,686.01, 684,044.28 and 280,825.59 is: 387,537.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,686.01 : 684,044.28 = 280,825.59 : x
  2. Step 2: Convert to fraction form
    495,686.01/684,044.28 = 280,825.59/x
  3. Step 3: Cross multiply
    495,686.01x = 684,044.28 × 280,825.59
  4. Step 4: Simplify right side
    495,686.01x = 192,097,138,517.13
  5. Step 5: Solve for x
    x = 192,097,138,517.13/495,686.01
  6. Step 6: Final answer
    x = 387,537.95

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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.