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Finding the Fourth Proportional to 277,709.72, 383,239.32 and 150,385.28

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Solution

The fourth proportional to 277,709.72, 383,239.32 and 150,385.28 is: 207,531.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,709.72 : 383,239.32 = 150,385.28 : x
  2. Step 2: Convert to fraction form
    277,709.72/383,239.32 = 150,385.28/x
  3. Step 3: Cross multiply
    277,709.72x = 383,239.32 × 150,385.28
  4. Step 4: Simplify right side
    277,709.72x = 57,633,552,445.21
  5. Step 5: Solve for x
    x = 57,633,552,445.21/277,709.72
  6. Step 6: Final answer
    x = 207,531.64

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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.