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Finding the Fourth Proportional to 495,863.56, 684,312.06 and 281,001.34

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Solution

The fourth proportional to 495,863.56, 684,312.06 and 281,001.34 is: 387,793.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,863.56 : 684,312.06 = 281,001.34 : x
  2. Step 2: Convert to fraction form
    495,863.56/684,312.06 = 281,001.34/x
  3. Step 3: Cross multiply
    495,863.56x = 684,312.06 × 281,001.34
  4. Step 4: Simplify right side
    495,863.56x = 192,292,605,838.16
  5. Step 5: Solve for x
    x = 192,292,605,838.16/495,863.56
  6. Step 6: Final answer
    x = 387,793.38

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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.