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Finding the Fourth Proportional to 549,474.30, 823,227.30 and 470,742.30

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Solution

The fourth proportional to 549,474.30, 823,227.30 and 470,742.30 is: 705,270.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,474.30 : 823,227.30 = 470,742.30 : x
  2. Step 2: Convert to fraction form
    549,474.30/823,227.30 = 470,742.30/x
  3. Step 3: Cross multiply
    549,474.30x = 823,227.30 × 470,742.30
  4. Step 4: Simplify right side
    549,474.30x = 387,527,912,624.79
  5. Step 5: Solve for x
    x = 387,527,912,624.79/549,474.30
  6. Step 6: Final answer
    x = 705,270.31

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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.