Home / 744,949.32-1,027,998.18-405,416.76

Finding the Fourth Proportional to 744,949.32, 1,027,998.18 and 405,416.76

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Solution

The fourth proportional to 744,949.32, 1,027,998.18 and 405,416.76 is: 559,457.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,949.32 : 1,027,998.18 = 405,416.76 : x
  2. Step 2: Convert to fraction form
    744,949.32/1,027,998.18 = 405,416.76/x
  3. Step 3: Cross multiply
    744,949.32x = 1,027,998.18 × 405,416.76
  4. Step 4: Simplify right side
    744,949.32x = 416,767,691,421.50
  5. Step 5: Solve for x
    x = 416,767,691,421.50/744,949.32
  6. Step 6: Final answer
    x = 559,457.78

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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.