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Finding the Fourth Proportional to 373,715.20, 522,020.30 and 373,715.20

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Solution

The fourth proportional to 373,715.20, 522,020.30 and 373,715.20 is: 522,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,715.20 : 522,020.30 = 373,715.20 : x
  2. Step 2: Convert to fraction form
    373,715.20/522,020.30 = 373,715.20/x
  3. Step 3: Cross multiply
    373,715.20x = 522,020.30 × 373,715.20
  4. Step 4: Simplify right side
    373,715.20x = 195,086,920,818.56
  5. Step 5: Solve for x
    x = 195,086,920,818.56/373,715.20
  6. Step 6: Final answer
    x = 522,020.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.