Home / 811,016.04-1,119,104.46-448,390.92

Finding the Fourth Proportional to 811,016.04, 1,119,104.46 and 448,390.92

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Solution

The fourth proportional to 811,016.04, 1,119,104.46 and 448,390.92 is: 618,725.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,016.04 : 1,119,104.46 = 448,390.92 : x
  2. Step 2: Convert to fraction form
    811,016.04/1,119,104.46 = 448,390.92/x
  3. Step 3: Cross multiply
    811,016.04x = 1,119,104.46 × 448,390.92
  4. Step 4: Simplify right side
    811,016.04x = 501,796,278,395.50
  5. Step 5: Solve for x
    x = 501,796,278,395.50/811,016.04
  6. Step 6: Final answer
    x = 618,725.47

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Half scale
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Double scale
Find fourth proportional to 811,017.04, 1,119,105.84 and 448,391.92
Similar ratio
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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.