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Finding the Fourth Proportional to 386,023.80, 577,998.90 and 386,023.80

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Solution

The fourth proportional to 386,023.80, 577,998.90 and 386,023.80 is: 577,998.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,023.80 : 577,998.90 = 386,023.80 : x
  2. Step 2: Convert to fraction form
    386,023.80/577,998.90 = 386,023.80/x
  3. Step 3: Cross multiply
    386,023.80x = 577,998.90 × 386,023.80
  4. Step 4: Simplify right side
    386,023.80x = 223,121,331,773.82
  5. Step 5: Solve for x
    x = 223,121,331,773.82/386,023.80
  6. Step 6: Final answer
    x = 577,998.90

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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.