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Finding the Fourth Proportional to 277,293.91, 382,664.48 and 156,435.20

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Solution

The fourth proportional to 277,293.91, 382,664.48 and 156,435.20 is: 215,879.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,293.91 : 382,664.48 = 156,435.20 : x
  2. Step 2: Convert to fraction form
    277,293.91/382,664.48 = 156,435.20/x
  3. Step 3: Cross multiply
    277,293.91x = 382,664.48 × 156,435.20
  4. Step 4: Simplify right side
    277,293.91x = 59,862,193,641.16
  5. Step 5: Solve for x
    x = 59,862,193,641.16/277,293.91
  6. Step 6: Final answer
    x = 215,879.95

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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.