Home / 919,548.48-1,268,964.72-517,140.48

Finding the Fourth Proportional to 919,548.48, 1,268,964.72 and 517,140.48

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Solution

The fourth proportional to 919,548.48, 1,268,964.72 and 517,140.48 is: 713,647.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,548.48 : 1,268,964.72 = 517,140.48 : x
  2. Step 2: Convert to fraction form
    919,548.48/1,268,964.72 = 517,140.48/x
  3. Step 3: Cross multiply
    919,548.48x = 1,268,964.72 × 517,140.48
  4. Step 4: Simplify right side
    919,548.48x = 656,233,024,403.87
  5. Step 5: Solve for x
    x = 656,233,024,403.87/919,548.48
  6. Step 6: Final answer
    x = 713,647.01

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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.