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Finding the Fourth Proportional to 671,467.32, 926,691.84 and 501,406.20

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Solution

The fourth proportional to 671,467.32, 926,691.84 and 501,406.20 is: 691,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,467.32 : 926,691.84 = 501,406.20 : x
  2. Step 2: Convert to fraction form
    671,467.32/926,691.84 = 501,406.20/x
  3. Step 3: Cross multiply
    671,467.32x = 926,691.84 × 501,406.20
  4. Step 4: Simplify right side
    671,467.32x = 464,649,034,065.41
  5. Step 5: Solve for x
    x = 464,649,034,065.41/671,467.32
  6. Step 6: Final answer
    x = 691,990.54

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Double scale
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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.