Home / 864,085.40-1,293,860.10-609,993.80

Finding the Fourth Proportional to 864,085.40, 1,293,860.10 and 609,993.80

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Solution

The fourth proportional to 864,085.40, 1,293,860.10 and 609,993.80 is: 913,389.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,085.40 : 1,293,860.10 = 609,993.80 : x
  2. Step 2: Convert to fraction form
    864,085.40/1,293,860.10 = 609,993.80/x
  3. Step 3: Cross multiply
    864,085.40x = 1,293,860.10 × 609,993.80
  4. Step 4: Simplify right side
    864,085.40x = 789,246,639,067.38
  5. Step 5: Solve for x
    x = 789,246,639,067.38/864,085.40
  6. Step 6: Final answer
    x = 913,389.62

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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.