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Finding the Fourth Proportional to 576,575.50, 864,866.32 and 378,152.40

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Solution

The fourth proportional to 576,575.50, 864,866.32 and 378,152.40 is: 567,230.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,575.50 : 864,866.32 = 378,152.40 : x
  2. Step 2: Convert to fraction form
    576,575.50/864,866.32 = 378,152.40/x
  3. Step 3: Cross multiply
    576,575.50x = 864,866.32 × 378,152.40
  4. Step 4: Simplify right side
    576,575.50x = 327,051,274,587.17
  5. Step 5: Solve for x
    x = 327,051,274,587.17/576,575.50
  6. Step 6: Final answer
    x = 567,230.61

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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.