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Finding the Fourth Proportional to 277,794.10, 383,418.76 and 157,005.45

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Solution

The fourth proportional to 277,794.10, 383,418.76 and 157,005.45 is: 216,703.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,794.10 : 383,418.76 = 157,005.45 : x
  2. Step 2: Convert to fraction form
    277,794.10/383,418.76 = 157,005.45/x
  3. Step 3: Cross multiply
    277,794.10x = 383,418.76 × 157,005.45
  4. Step 4: Simplify right side
    277,794.10x = 60,198,834,952.24
  5. Step 5: Solve for x
    x = 60,198,834,952.24/277,794.10
  6. Step 6: Final answer
    x = 216,703.07

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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.