Home / 811,330.11-1,216,987.86-570,450.29

Finding the Fourth Proportional to 811,330.11, 1,216,987.86 and 570,450.29

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Solution

The fourth proportional to 811,330.11, 1,216,987.86 and 570,450.29 is: 855,670.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,330.11 : 1,216,987.86 = 570,450.29 : x
  2. Step 2: Convert to fraction form
    811,330.11/1,216,987.86 = 570,450.29/x
  3. Step 3: Cross multiply
    811,330.11x = 1,216,987.86 × 570,450.29
  4. Step 4: Simplify right side
    811,330.11x = 694,231,071,578.54
  5. Step 5: Solve for x
    x = 694,231,071,578.54/811,330.11
  6. Step 6: Final answer
    x = 855,670.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.