Home / 811,080.28-1,119,232.96-448,437.34

Finding the Fourth Proportional to 811,080.28, 1,119,232.96 and 448,437.34

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Solution

The fourth proportional to 811,080.28, 1,119,232.96 and 448,437.34 is: 618,811.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,080.28 : 1,119,232.96 = 448,437.34 : x
  2. Step 2: Convert to fraction form
    811,080.28/1,119,232.96 = 448,437.34/x
  3. Step 3: Cross multiply
    811,080.28x = 1,119,232.96 × 448,437.34
  4. Step 4: Simplify right side
    811,080.28x = 501,905,851,422.73
  5. Step 5: Solve for x
    x = 501,905,851,422.73/811,080.28
  6. Step 6: Final answer
    x = 618,811.56

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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.