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Finding the Fourth Proportional to 340,858.77, 470,363.95 and 187,889.05

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Solution

The fourth proportional to 340,858.77, 470,363.95 and 187,889.05 is: 259,275.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,858.77 : 470,363.95 = 187,889.05 : x
  2. Step 2: Convert to fraction form
    340,858.77/470,363.95 = 187,889.05/x
  3. Step 3: Cross multiply
    340,858.77x = 470,363.95 × 187,889.05
  4. Step 4: Simplify right side
    340,858.77x = 88,376,235,719.75
  5. Step 5: Solve for x
    x = 88,376,235,719.75/340,858.77
  6. Step 6: Final answer
    x = 259,275.23

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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.