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Finding the Fourth Proportional to 519,917.58, 717,363.30 and 301,996.77

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Solution

The fourth proportional to 519,917.58, 717,363.30 and 301,996.77 is: 416,684.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,917.58 : 717,363.30 = 301,996.77 : x
  2. Step 2: Convert to fraction form
    519,917.58/717,363.30 = 301,996.77/x
  3. Step 3: Cross multiply
    519,917.58x = 717,363.30 × 301,996.77
  4. Step 4: Simplify right side
    519,917.58x = 216,641,397,958.92
  5. Step 5: Solve for x
    x = 216,641,397,958.92/519,917.58
  6. Step 6: Final answer
    x = 416,684.12

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Double scale
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1.5x scale

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.