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Finding the Fourth Proportional to 519,715.49, 779,600.75 and 164,757.20

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Solution

The fourth proportional to 519,715.49, 779,600.75 and 164,757.20 is: 247,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,715.49 : 779,600.75 = 164,757.20 : x
  2. Step 2: Convert to fraction form
    519,715.49/779,600.75 = 164,757.20/x
  3. Step 3: Cross multiply
    519,715.49x = 779,600.75 × 164,757.20
  4. Step 4: Simplify right side
    519,715.49x = 128,444,831,966.11
  5. Step 5: Solve for x
    x = 128,444,831,966.11/519,715.49
  6. Step 6: Final answer
    x = 247,144.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.