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Finding the Fourth Proportional to 368,874.96, 509,069.14 and 225,662.45

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Solution

The fourth proportional to 368,874.96, 509,069.14 and 225,662.45 is: 311,427.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,874.96 : 509,069.14 = 225,662.45 : x
  2. Step 2: Convert to fraction form
    368,874.96/509,069.14 = 225,662.45/x
  3. Step 3: Cross multiply
    368,874.96x = 509,069.14 × 225,662.45
  4. Step 4: Simplify right side
    368,874.96x = 114,877,788,223.48
  5. Step 5: Solve for x
    x = 114,877,788,223.48/368,874.96
  6. Step 6: Final answer
    x = 311,427.45

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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.