Home / 903,286.56-1,246,445.64-521,436.36

Finding the Fourth Proportional to 903,286.56, 1,246,445.64 and 521,436.36

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Solution

The fourth proportional to 903,286.56, 1,246,445.64 and 521,436.36 is: 719,530.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,286.56 : 1,246,445.64 = 521,436.36 : x
  2. Step 2: Convert to fraction form
    903,286.56/1,246,445.64 = 521,436.36/x
  3. Step 3: Cross multiply
    903,286.56x = 1,246,445.64 × 521,436.36
  4. Step 4: Simplify right side
    903,286.56x = 649,942,077,459.47
  5. Step 5: Solve for x
    x = 649,942,077,459.47/903,286.56
  6. Step 6: Final answer
    x = 719,530.33

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Double scale
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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.