Home / 827,231.33-1,240,459.47-347,356.72

Finding the Fourth Proportional to 827,231.33, 1,240,459.47 and 347,356.72

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Solution

The fourth proportional to 827,231.33, 1,240,459.47 and 347,356.72 is: 520,872.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,231.33 : 1,240,459.47 = 347,356.72 : x
  2. Step 2: Convert to fraction form
    827,231.33/1,240,459.47 = 347,356.72/x
  3. Step 3: Cross multiply
    827,231.33x = 1,240,459.47 × 347,356.72
  4. Step 4: Simplify right side
    827,231.33x = 430,881,932,792.14
  5. Step 5: Solve for x
    x = 430,881,932,792.14/827,231.33
  6. Step 6: Final answer
    x = 520,872.36

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Double scale
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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.