Home / 763,154.96-1,053,183.46-419,005.39

Finding the Fourth Proportional to 763,154.96, 1,053,183.46 and 419,005.39

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Solution

The fourth proportional to 763,154.96, 1,053,183.46 and 419,005.39 is: 578,243.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,154.96 : 1,053,183.46 = 419,005.39 : x
  2. Step 2: Convert to fraction form
    763,154.96/1,053,183.46 = 419,005.39/x
  3. Step 3: Cross multiply
    763,154.96x = 1,053,183.46 × 419,005.39
  4. Step 4: Simplify right side
    763,154.96x = 441,289,546,936.78
  5. Step 5: Solve for x
    x = 441,289,546,936.78/763,154.96
  6. Step 6: Final answer
    x = 578,243.70

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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.