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Finding the Fourth Proportional to 547,311.68, 754,874.48 and 470,958.74

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Solution

The fourth proportional to 547,311.68, 754,874.48 and 470,958.74 is: 649,565.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,311.68 : 754,874.48 = 470,958.74 : x
  2. Step 2: Convert to fraction form
    547,311.68/754,874.48 = 470,958.74/x
  3. Step 3: Cross multiply
    547,311.68x = 754,874.48 × 470,958.74
  4. Step 4: Simplify right side
    547,311.68x = 355,514,733,958.96
  5. Step 5: Solve for x
    x = 355,514,733,958.96/547,311.68
  6. Step 6: Final answer
    x = 649,565.41

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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.