Home / 1,931,479.80-2,896,701.30-809,316.60

Finding the Fourth Proportional to 1,931,479.80, 2,896,701.30 and 809,316.60

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Solution

The fourth proportional to 1,931,479.80, 2,896,701.30 and 809,316.60 is: 1,213,757.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,479.80 : 2,896,701.30 = 809,316.60 : x
  2. Step 2: Convert to fraction form
    1,931,479.80/2,896,701.30 = 809,316.60/x
  3. Step 3: Cross multiply
    1,931,479.80x = 2,896,701.30 × 809,316.60
  4. Step 4: Simplify right side
    1,931,479.80x = 2,344,348,447,331.58
  5. Step 5: Solve for x
    x = 2,344,348,447,331.58/1,931,479.80
  6. Step 6: Final answer
    x = 1,213,757.68

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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.