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Finding the Fourth Proportional to 567,143.69, 850,965.66 and 300,838.86

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Solution

The fourth proportional to 567,143.69, 850,965.66 and 300,838.86 is: 451,390.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,143.69 : 850,965.66 = 300,838.86 : x
  2. Step 2: Convert to fraction form
    567,143.69/850,965.66 = 300,838.86/x
  3. Step 3: Cross multiply
    567,143.69x = 850,965.66 × 300,838.86
  4. Step 4: Simplify right side
    567,143.69x = 256,003,539,053.55
  5. Step 5: Solve for x
    x = 256,003,539,053.55/567,143.69
  6. Step 6: Final answer
    x = 451,390.97

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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.