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Finding the Fourth Proportional to 371,156.77, 512,196.34 and 201,390.89

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Solution

The fourth proportional to 371,156.77, 512,196.34 and 201,390.89 is: 277,919.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,156.77 : 512,196.34 = 201,390.89 : x
  2. Step 2: Convert to fraction form
    371,156.77/512,196.34 = 201,390.89/x
  3. Step 3: Cross multiply
    371,156.77x = 512,196.34 × 201,390.89
  4. Step 4: Simplify right side
    371,156.77x = 103,151,676,395.18
  5. Step 5: Solve for x
    x = 103,151,676,395.18/371,156.77
  6. Step 6: Final answer
    x = 277,919.43

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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.