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Finding the Fourth Proportional to 277,215.54, 382,555.59 and 156,357.83

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Solution

The fourth proportional to 277,215.54, 382,555.59 and 156,357.83 is: 215,772.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,215.54 : 382,555.59 = 156,357.83 : x
  2. Step 2: Convert to fraction form
    277,215.54/382,555.59 = 156,357.83/x
  3. Step 3: Cross multiply
    277,215.54x = 382,555.59 × 156,357.83
  4. Step 4: Simplify right side
    277,215.54x = 59,815,559,993.99
  5. Step 5: Solve for x
    x = 59,815,559,993.99/277,215.54
  6. Step 6: Final answer
    x = 215,772.75

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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.