Home / 977,171.20-1,465,756.80-809,209.60

Finding the Fourth Proportional to 977,171.20, 1,465,756.80 and 809,209.60

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Solution

The fourth proportional to 977,171.20, 1,465,756.80 and 809,209.60 is: 1,213,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,171.20 : 1,465,756.80 = 809,209.60 : x
  2. Step 2: Convert to fraction form
    977,171.20/1,465,756.80 = 809,209.60/x
  3. Step 3: Cross multiply
    977,171.20x = 1,465,756.80 × 809,209.60
  4. Step 4: Simplify right side
    977,171.20x = 1,186,104,473,825.28
  5. Step 5: Solve for x
    x = 1,186,104,473,825.28/977,171.20
  6. Step 6: Final answer
    x = 1,213,814.40

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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.