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Finding the Fourth Proportional to 277,239.72, 382,590.36 and 156,380.63

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Solution

The fourth proportional to 277,239.72, 382,590.36 and 156,380.63 is: 215,805.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,239.72 : 382,590.36 = 156,380.63 : x
  2. Step 2: Convert to fraction form
    277,239.72/382,590.36 = 156,380.63/x
  3. Step 3: Cross multiply
    277,239.72x = 382,590.36 × 156,380.63
  4. Step 4: Simplify right side
    277,239.72x = 59,829,721,528.73
  5. Step 5: Solve for x
    x = 59,829,721,528.73/277,239.72
  6. Step 6: Final answer
    x = 215,805.01

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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.