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Finding the Fourth Proportional to 495,705.42, 684,078.84 and 269,350.92

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Solution

The fourth proportional to 495,705.42, 684,078.84 and 269,350.92 is: 371,707.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,705.42 : 684,078.84 = 269,350.92 : x
  2. Step 2: Convert to fraction form
    495,705.42/684,078.84 = 269,350.92/x
  3. Step 3: Cross multiply
    495,705.42x = 684,078.84 × 269,350.92
  4. Step 4: Simplify right side
    495,705.42x = 184,257,264,906.53
  5. Step 5: Solve for x
    x = 184,257,264,906.53/495,705.42
  6. Step 6: Final answer
    x = 371,707.18

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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.