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Finding the Fourth Proportional to 353,553.54, 487,914.87 and 200,598.18

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Solution

The fourth proportional to 353,553.54, 487,914.87 and 200,598.18 is: 276,831.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,553.54 : 487,914.87 = 200,598.18 : x
  2. Step 2: Convert to fraction form
    353,553.54/487,914.87 = 200,598.18/x
  3. Step 3: Cross multiply
    353,553.54x = 487,914.87 × 200,598.18
  4. Step 4: Simplify right side
    353,553.54x = 97,874,834,916.94
  5. Step 5: Solve for x
    x = 97,874,834,916.94/353,553.54
  6. Step 6: Final answer
    x = 276,831.72

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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.