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Finding the Fourth Proportional to 277,748.69, 383,316.80 and 156,912.16

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Solution

The fourth proportional to 277,748.69, 383,316.80 and 156,912.16 is: 216,552.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,748.69 : 383,316.80 = 156,912.16 : x
  2. Step 2: Convert to fraction form
    277,748.69/383,316.80 = 156,912.16/x
  3. Step 3: Cross multiply
    277,748.69x = 383,316.80 × 156,912.16
  4. Step 4: Simplify right side
    277,748.69x = 60,147,067,052.29
  5. Step 5: Solve for x
    x = 60,147,067,052.29/277,748.69
  6. Step 6: Final answer
    x = 216,552.12

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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.