Home / 809,386.23-1,117,400.36-487,175.25

Finding the Fourth Proportional to 809,386.23, 1,117,400.36 and 487,175.25

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Solution

The fourth proportional to 809,386.23, 1,117,400.36 and 487,175.25 is: 672,571.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,386.23 : 1,117,400.36 = 487,175.25 : x
  2. Step 2: Convert to fraction form
    809,386.23/1,117,400.36 = 487,175.25/x
  3. Step 3: Cross multiply
    809,386.23x = 1,117,400.36 × 487,175.25
  4. Step 4: Simplify right side
    809,386.23x = 544,369,797,297.21
  5. Step 5: Solve for x
    x = 544,369,797,297.21/809,386.23
  6. Step 6: Final answer
    x = 672,571.11

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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.