Home / 825,605.76-1,139,499.52-535,576.64

Finding the Fourth Proportional to 825,605.76, 1,139,499.52 and 535,576.64

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Solution

The fourth proportional to 825,605.76, 1,139,499.52 and 535,576.64 is: 739,201.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,605.76 : 1,139,499.52 = 535,576.64 : x
  2. Step 2: Convert to fraction form
    825,605.76/1,139,499.52 = 535,576.64/x
  3. Step 3: Cross multiply
    825,605.76x = 1,139,499.52 × 535,576.64
  4. Step 4: Simplify right side
    825,605.76x = 610,289,324,203.21
  5. Step 5: Solve for x
    x = 610,289,324,203.21/825,605.76
  6. Step 6: Final answer
    x = 739,201.87

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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.