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Finding the Fourth Proportional to 620,932.34, 930,619.34 and 265,528.42

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Solution

The fourth proportional to 620,932.34, 930,619.34 and 265,528.42 is: 397,959.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,932.34 : 930,619.34 = 265,528.42 : x
  2. Step 2: Convert to fraction form
    620,932.34/930,619.34 = 265,528.42/x
  3. Step 3: Cross multiply
    620,932.34x = 930,619.34 × 265,528.42
  4. Step 4: Simplify right side
    620,932.34x = 247,105,882,971.64
  5. Step 5: Solve for x
    x = 247,105,882,971.64/620,932.34
  6. Step 6: Final answer
    x = 397,959.43

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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.