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Finding the Fourth Proportional to 277,805.22, 383,348.46 and 156,957

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Solution

The fourth proportional to 277,805.22, 383,348.46 and 156,957 is: 216,587.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,805.22 : 383,348.46 = 156,957 : x
  2. Step 2: Convert to fraction form
    277,805.22/383,348.46 = 156,957/x
  3. Step 3: Cross multiply
    277,805.22x = 383,348.46 × 156,957
  4. Step 4: Simplify right side
    277,805.22x = 60,169,224,236.22
  5. Step 5: Solve for x
    x = 60,169,224,236.22/277,805.22
  6. Step 6: Final answer
    x = 216,587.81

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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.