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Finding the Fourth Proportional to 519,920.58, 717,367.44 and 301,999.77

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Solution

The fourth proportional to 519,920.58, 717,367.44 and 301,999.77 is: 416,688.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,920.58 : 717,367.44 = 301,999.77 : x
  2. Step 2: Convert to fraction form
    519,920.58/717,367.44 = 301,999.77/x
  3. Step 3: Cross multiply
    519,920.58x = 717,367.44 × 301,999.77
  4. Step 4: Simplify right side
    519,920.58x = 216,644,801,885.49
  5. Step 5: Solve for x
    x = 216,644,801,885.49/519,920.58
  6. Step 6: Final answer
    x = 416,688.26

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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.