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Finding the Fourth Proportional to 355,998.60, 534,516.30 and 216,030.60

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Solution

The fourth proportional to 355,998.60, 534,516.30 and 216,030.60 is: 324,360.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,998.60 : 534,516.30 = 216,030.60 : x
  2. Step 2: Convert to fraction form
    355,998.60/534,516.30 = 216,030.60/x
  3. Step 3: Cross multiply
    355,998.60x = 534,516.30 × 216,030.60
  4. Step 4: Simplify right side
    355,998.60x = 115,471,876,998.78
  5. Step 5: Solve for x
    x = 115,471,876,998.78/355,998.60
  6. Step 6: Final answer
    x = 324,360.48

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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.