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Finding the Fourth Proportional to 230,913.60, 346,370.40 and 216,916.80

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Solution

The fourth proportional to 230,913.60, 346,370.40 and 216,916.80 is: 325,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,913.60 : 346,370.40 = 216,916.80 : x
  2. Step 2: Convert to fraction form
    230,913.60/346,370.40 = 216,916.80/x
  3. Step 3: Cross multiply
    230,913.60x = 346,370.40 × 216,916.80
  4. Step 4: Simplify right side
    230,913.60x = 75,133,558,782.72
  5. Step 5: Solve for x
    x = 75,133,558,782.72/230,913.60
  6. Step 6: Final answer
    x = 325,375.20

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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.