Home / 873,328.28-1,309,549.40-399,607.68

Finding the Fourth Proportional to 873,328.28, 1,309,549.40 and 399,607.68

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Solution

The fourth proportional to 873,328.28, 1,309,549.40 and 399,607.68 is: 599,208.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,328.28 : 1,309,549.40 = 399,607.68 : x
  2. Step 2: Convert to fraction form
    873,328.28/1,309,549.40 = 399,607.68/x
  3. Step 3: Cross multiply
    873,328.28x = 1,309,549.40 × 399,607.68
  4. Step 4: Simplify right side
    873,328.28x = 523,305,997,579.39
  5. Step 5: Solve for x
    x = 523,305,997,579.39/873,328.28
  6. Step 6: Final answer
    x = 599,208.81

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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.