Home / 1,683,739.20-2,323,530.80-919,773.12

Finding the Fourth Proportional to 1,683,739.20, 2,323,530.80 and 919,773.12

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Solution

The fourth proportional to 1,683,739.20, 2,323,530.80 and 919,773.12 is: 1,269,270.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683,739.20 : 2,323,530.80 = 919,773.12 : x
  2. Step 2: Convert to fraction form
    1,683,739.20/2,323,530.80 = 919,773.12/x
  3. Step 3: Cross multiply
    1,683,739.20x = 2,323,530.80 × 919,773.12
  4. Step 4: Simplify right side
    1,683,739.20x = 2,137,121,173,332.10
  5. Step 5: Solve for x
    x = 2,137,121,173,332.10/1,683,739.20
  6. Step 6: Final answer
    x = 1,269,270.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.