Home / 712,867.80-983,719.94-406,932.02

Finding the Fourth Proportional to 712,867.80, 983,719.94 and 406,932.02

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Solution

The fourth proportional to 712,867.80, 983,719.94 and 406,932.02 is: 561,544.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,867.80 : 983,719.94 = 406,932.02 : x
  2. Step 2: Convert to fraction form
    712,867.80/983,719.94 = 406,932.02/x
  3. Step 3: Cross multiply
    712,867.80x = 983,719.94 × 406,932.02
  4. Step 4: Simplify right side
    712,867.80x = 400,307,142,298.48
  5. Step 5: Solve for x
    x = 400,307,142,298.48/712,867.80
  6. Step 6: Final answer
    x = 561,544.71

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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.