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Finding the Fourth Proportional to 277,686.05, 416,679.80 and 117,851.90

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Solution

The fourth proportional to 277,686.05, 416,679.80 and 117,851.90 is: 176,841.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,686.05 : 416,679.80 = 117,851.90 : x
  2. Step 2: Convert to fraction form
    277,686.05/416,679.80 = 117,851.90/x
  3. Step 3: Cross multiply
    277,686.05x = 416,679.80 × 117,851.90
  4. Step 4: Simplify right side
    277,686.05x = 49,106,503,448.96
  5. Step 5: Solve for x
    x = 49,106,503,448.96/277,686.05
  6. Step 6: Final answer
    x = 176,841.81

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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.