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Finding the Fourth Proportional to 277,390.91, 382,809.21 and 156,525.14

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Solution

The fourth proportional to 277,390.91, 382,809.21 and 156,525.14 is: 216,010.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,390.91 : 382,809.21 = 156,525.14 : x
  2. Step 2: Convert to fraction form
    277,390.91/382,809.21 = 156,525.14/x
  3. Step 3: Cross multiply
    277,390.91x = 382,809.21 × 156,525.14
  4. Step 4: Simplify right side
    277,390.91x = 59,919,265,188.54
  5. Step 5: Solve for x
    x = 59,919,265,188.54/277,390.91
  6. Step 6: Final answer
    x = 216,010.20

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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.