Home / 826,240.51-1,239,098.32-265,143.79

Finding the Fourth Proportional to 826,240.51, 1,239,098.32 and 265,143.79

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Solution

The fourth proportional to 826,240.51, 1,239,098.32 and 265,143.79 is: 397,631.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,240.51 : 1,239,098.32 = 265,143.79 : x
  2. Step 2: Convert to fraction form
    826,240.51/1,239,098.32 = 265,143.79/x
  3. Step 3: Cross multiply
    826,240.51x = 1,239,098.32 × 265,143.79
  4. Step 4: Simplify right side
    826,240.51x = 328,539,224,747.43
  5. Step 5: Solve for x
    x = 328,539,224,747.43/826,240.51
  6. Step 6: Final answer
    x = 397,631.47

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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.