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Finding the Fourth Proportional to 277,782.40, 383,337.84 and 156,962.80

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Solution

The fourth proportional to 277,782.40, 383,337.84 and 156,962.80 is: 216,607.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,782.40 : 383,337.84 = 156,962.80 : x
  2. Step 2: Convert to fraction form
    277,782.40/383,337.84 = 156,962.80/x
  3. Step 3: Cross multiply
    277,782.40x = 383,337.84 × 156,962.80
  4. Step 4: Simplify right side
    277,782.40x = 60,169,780,712.35
  5. Step 5: Solve for x
    x = 60,169,780,712.35/277,782.40
  6. Step 6: Final answer
    x = 216,607.61

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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.