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Finding the Fourth Proportional to 371,641.37, 512,936.97 and 242,355.38

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Solution

The fourth proportional to 371,641.37, 512,936.97 and 242,355.38 is: 334,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,641.37 : 512,936.97 = 242,355.38 : x
  2. Step 2: Convert to fraction form
    371,641.37/512,936.97 = 242,355.38/x
  3. Step 3: Cross multiply
    371,641.37x = 512,936.97 × 242,355.38
  4. Step 4: Simplify right side
    371,641.37x = 124,313,034,280.40
  5. Step 5: Solve for x
    x = 124,313,034,280.40/371,641.37
  6. Step 6: Final answer
    x = 334,497.30

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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.