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Finding the Fourth Proportional to 277,015.30, 415,401.45 and 127,205.80

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Solution

The fourth proportional to 277,015.30, 415,401.45 and 127,205.80 is: 190,752.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,015.30 : 415,401.45 = 127,205.80 : x
  2. Step 2: Convert to fraction form
    277,015.30/415,401.45 = 127,205.80/x
  3. Step 3: Cross multiply
    277,015.30x = 415,401.45 × 127,205.80
  4. Step 4: Simplify right side
    277,015.30x = 52,841,473,768.41
  5. Step 5: Solve for x
    x = 52,841,473,768.41/277,015.30
  6. Step 6: Final answer
    x = 190,752.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.