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Finding the Fourth Proportional to 620,844.52, 931,266.80 and 177,612.52

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Solution

The fourth proportional to 620,844.52, 931,266.80 and 177,612.52 is: 266,418.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,844.52 : 931,266.80 = 177,612.52 : x
  2. Step 2: Convert to fraction form
    620,844.52/931,266.80 = 177,612.52/x
  3. Step 3: Cross multiply
    620,844.52x = 931,266.80 × 177,612.52
  4. Step 4: Simplify right side
    620,844.52x = 165,404,643,140.34
  5. Step 5: Solve for x
    x = 165,404,643,140.34/620,844.52
  6. Step 6: Final answer
    x = 266,418.79

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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.