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Finding the Fourth Proportional to 620,020.20, 930,116.70 and 265,031.40

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Solution

The fourth proportional to 620,020.20, 930,116.70 and 265,031.40 is: 397,584.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,020.20 : 930,116.70 = 265,031.40 : x
  2. Step 2: Convert to fraction form
    620,020.20/930,116.70 = 265,031.40/x
  3. Step 3: Cross multiply
    620,020.20x = 930,116.70 × 265,031.40
  4. Step 4: Simplify right side
    620,020.20x = 246,510,131,164.38
  5. Step 5: Solve for x
    x = 246,510,131,164.38/620,020.20
  6. Step 6: Final answer
    x = 397,584.03

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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.