Home / 809,679.16-1,117,349.97-447,095.20

Finding the Fourth Proportional to 809,679.16, 1,117,349.97 and 447,095.20

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Solution

The fourth proportional to 809,679.16, 1,117,349.97 and 447,095.20 is: 616,987.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,679.16 : 1,117,349.97 = 447,095.20 : x
  2. Step 2: Convert to fraction form
    809,679.16/1,117,349.97 = 447,095.20/x
  3. Step 3: Cross multiply
    809,679.16x = 1,117,349.97 × 447,095.20
  4. Step 4: Simplify right side
    809,679.16x = 499,561,808,307.14
  5. Step 5: Solve for x
    x = 499,561,808,307.14/809,679.16
  6. Step 6: Final answer
    x = 616,987.36

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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.