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Finding the Fourth Proportional to 576,312.42, 865,077.34 and 323,808.70

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Solution

The fourth proportional to 576,312.42, 865,077.34 and 323,808.70 is: 486,055.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,312.42 : 865,077.34 = 323,808.70 : x
  2. Step 2: Convert to fraction form
    576,312.42/865,077.34 = 323,808.70/x
  3. Step 3: Cross multiply
    576,312.42x = 865,077.34 × 323,808.70
  4. Step 4: Simplify right side
    576,312.42x = 280,119,568,864.86
  5. Step 5: Solve for x
    x = 280,119,568,864.86/576,312.42
  6. Step 6: Final answer
    x = 486,055.06

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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.