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Finding the Fourth Proportional to 389,706.20, 584,559.30 and 168,522.20

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Solution

The fourth proportional to 389,706.20, 584,559.30 and 168,522.20 is: 252,783.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,706.20 : 584,559.30 = 168,522.20 : x
  2. Step 2: Convert to fraction form
    389,706.20/584,559.30 = 168,522.20/x
  3. Step 3: Cross multiply
    389,706.20x = 584,559.30 × 168,522.20
  4. Step 4: Simplify right side
    389,706.20x = 98,511,219,266.46
  5. Step 5: Solve for x
    x = 98,511,219,266.46/389,706.20
  6. Step 6: Final answer
    x = 252,783.30

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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.