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Finding the Fourth Proportional to 338,722.80, 508,085.08 and 114,240.92

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Solution

The fourth proportional to 338,722.80, 508,085.08 and 114,240.92 is: 171,361.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,722.80 : 508,085.08 = 114,240.92 : x
  2. Step 2: Convert to fraction form
    338,722.80/508,085.08 = 114,240.92/x
  3. Step 3: Cross multiply
    338,722.80x = 508,085.08 × 114,240.92
  4. Step 4: Simplify right side
    338,722.80x = 58,044,106,977.47
  5. Step 5: Solve for x
    x = 58,044,106,977.47/338,722.80
  6. Step 6: Final answer
    x = 171,361.68

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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.