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Finding the Fourth Proportional to 277,900.40, 383,500.92 and 157,080.80

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Solution

The fourth proportional to 277,900.40, 383,500.92 and 157,080.80 is: 216,770.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,900.40 : 383,500.92 = 157,080.80 : x
  2. Step 2: Convert to fraction form
    277,900.40/383,500.92 = 157,080.80/x
  3. Step 3: Cross multiply
    277,900.40x = 383,500.92 × 157,080.80
  4. Step 4: Simplify right side
    277,900.40x = 60,240,631,314.34
  5. Step 5: Solve for x
    x = 60,240,631,314.34/277,900.40
  6. Step 6: Final answer
    x = 216,770.58

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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.