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Finding the Fourth Proportional to 385,797.92, 532,395.34 and 213,715.35

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Solution

The fourth proportional to 385,797.92, 532,395.34 and 213,715.35 is: 294,923.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,797.92 : 532,395.34 = 213,715.35 : x
  2. Step 2: Convert to fraction form
    385,797.92/532,395.34 = 213,715.35/x
  3. Step 3: Cross multiply
    385,797.92x = 532,395.34 × 213,715.35
  4. Step 4: Simplify right side
    385,797.92x = 113,781,055,892.18
  5. Step 5: Solve for x
    x = 113,781,055,892.18/385,797.92
  6. Step 6: Final answer
    x = 294,923.98

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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.