Home / 719,140.78-992,434.44-396,871.24

Finding the Fourth Proportional to 719,140.78, 992,434.44 and 396,871.24

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Solution

The fourth proportional to 719,140.78, 992,434.44 and 396,871.24 is: 547,693.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,140.78 : 992,434.44 = 396,871.24 : x
  2. Step 2: Convert to fraction form
    719,140.78/992,434.44 = 396,871.24/x
  3. Step 3: Cross multiply
    719,140.78x = 992,434.44 × 396,871.24
  4. Step 4: Simplify right side
    719,140.78x = 393,868,686,821.51
  5. Step 5: Solve for x
    x = 393,868,686,821.51/719,140.78
  6. Step 6: Final answer
    x = 547,693.44

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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.