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Finding the Fourth Proportional to 352,700.20, 528,272.70 and 306,044.20

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Solution

The fourth proportional to 352,700.20, 528,272.70 and 306,044.20 is: 458,391.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,700.20 : 528,272.70 = 306,044.20 : x
  2. Step 2: Convert to fraction form
    352,700.20/528,272.70 = 306,044.20/x
  3. Step 3: Cross multiply
    352,700.20x = 528,272.70 × 306,044.20
  4. Step 4: Simplify right side
    352,700.20x = 161,674,795,853.34
  5. Step 5: Solve for x
    x = 161,674,795,853.34/352,700.20
  6. Step 6: Final answer
    x = 458,391.56

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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.