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Finding the Fourth Proportional to 352,970.56, 487,060.59 and 199,997.20

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Solution

The fourth proportional to 352,970.56, 487,060.59 and 199,997.20 is: 275,974.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,970.56 : 487,060.59 = 199,997.20 : x
  2. Step 2: Convert to fraction form
    352,970.56/487,060.59 = 199,997.20/x
  3. Step 3: Cross multiply
    352,970.56x = 487,060.59 × 199,997.20
  4. Step 4: Simplify right side
    352,970.56x = 97,410,754,230.35
  5. Step 5: Solve for x
    x = 97,410,754,230.35/352,970.56
  6. Step 6: Final answer
    x = 275,974.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.