Home / 716,126.24-988,234.47-393,836.33

Finding the Fourth Proportional to 716,126.24, 988,234.47 and 393,836.33

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Solution

The fourth proportional to 716,126.24, 988,234.47 and 393,836.33 is: 543,483.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,126.24 : 988,234.47 = 393,836.33 : x
  2. Step 2: Convert to fraction form
    716,126.24/988,234.47 = 393,836.33/x
  3. Step 3: Cross multiply
    716,126.24x = 988,234.47 × 393,836.33
  4. Step 4: Simplify right side
    716,126.24x = 389,202,631,903.12
  5. Step 5: Solve for x
    x = 389,202,631,903.12/716,126.24
  6. Step 6: Final answer
    x = 543,483.28

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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.