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Finding the Fourth Proportional to 338,772.30, 508,085.55 and 149,232.30

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Solution

The fourth proportional to 338,772.30, 508,085.55 and 149,232.30 is: 223,816.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,772.30 : 508,085.55 = 149,232.30 : x
  2. Step 2: Convert to fraction form
    338,772.30/508,085.55 = 149,232.30/x
  3. Step 3: Cross multiply
    338,772.30x = 508,085.55 × 149,232.30
  4. Step 4: Simplify right side
    338,772.30x = 75,822,775,223.27
  5. Step 5: Solve for x
    x = 75,822,775,223.27/338,772.30
  6. Step 6: Final answer
    x = 223,816.34

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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.