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Finding the Fourth Proportional to 719,291.00, 992,550.89 and 396,980.28

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Solution

The fourth proportional to 719,291.00, 992,550.89 and 396,980.28 is: 547,793.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,291.00 : 992,550.89 = 396,980.28 : x
  2. Step 2: Convert to fraction form
    719,291.00/992,550.89 = 396,980.28/x
  3. Step 3: Cross multiply
    719,291.00x = 992,550.89 × 396,980.28
  4. Step 4: Simplify right side
    719,291.00x = 394,023,128,241.55
  5. Step 5: Solve for x
    x = 394,023,128,241.55/719,291.00
  6. Step 6: Final answer
    x = 547,793.77

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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.