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Finding the Fourth Proportional to 340,782.53, 470,260.71 and 187,820.24

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Solution

The fourth proportional to 340,782.53, 470,260.71 and 187,820.24 is: 259,181.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,782.53 : 470,260.71 = 187,820.24 : x
  2. Step 2: Convert to fraction form
    340,782.53/470,260.71 = 187,820.24/x
  3. Step 3: Cross multiply
    340,782.53x = 470,260.71 × 187,820.24
  4. Step 4: Simplify right side
    340,782.53x = 88,324,477,063.47
  5. Step 5: Solve for x
    x = 88,324,477,063.47/340,782.53
  6. Step 6: Final answer
    x = 259,181.36

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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.