Home / 691,234.20-1,036,997.10-291,669.30

Finding the Fourth Proportional to 691,234.20, 1,036,997.10 and 291,669.30

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Solution

The fourth proportional to 691,234.20, 1,036,997.10 and 291,669.30 is: 437,565.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,234.20 : 1,036,997.10 = 291,669.30 : x
  2. Step 2: Convert to fraction form
    691,234.20/1,036,997.10 = 291,669.30/x
  3. Step 3: Cross multiply
    691,234.20x = 1,036,997.10 × 291,669.30
  4. Step 4: Simplify right side
    691,234.20x = 302,460,218,259.03
  5. Step 5: Solve for x
    x = 302,460,218,259.03/691,234.20
  6. Step 6: Final answer
    x = 437,565.47

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Double scale
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Similar ratio
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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.