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Finding the Fourth Proportional to 386,099.04, 532,816.30 and 216,334.38

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Solution

The fourth proportional to 386,099.04, 532,816.30 and 216,334.38 is: 298,541.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,099.04 : 532,816.30 = 216,334.38 : x
  2. Step 2: Convert to fraction form
    386,099.04/532,816.30 = 216,334.38/x
  3. Step 3: Cross multiply
    386,099.04x = 532,816.30 × 216,334.38
  4. Step 4: Simplify right side
    386,099.04x = 115,266,483,914.39
  5. Step 5: Solve for x
    x = 115,266,483,914.39/386,099.04
  6. Step 6: Final answer
    x = 298,541.23

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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.