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Finding the Fourth Proportional to 581,118.96, 871,678.48 and 206,879.52

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Solution

The fourth proportional to 581,118.96, 871,678.48 and 206,879.52 is: 310,319.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,118.96 : 871,678.48 = 206,879.52 : x
  2. Step 2: Convert to fraction form
    581,118.96/871,678.48 = 206,879.52/x
  3. Step 3: Cross multiply
    581,118.96x = 871,678.48 × 206,879.52
  4. Step 4: Simplify right side
    581,118.96x = 180,332,425,536.73
  5. Step 5: Solve for x
    x = 180,332,425,536.73/581,118.96
  6. Step 6: Final answer
    x = 310,319.29

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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.