Home / 712,661.24-983,419.17-406,729.10

Finding the Fourth Proportional to 712,661.24, 983,419.17 and 406,729.10

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Solution

The fourth proportional to 712,661.24, 983,419.17 and 406,729.10 is: 561,255.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,661.24 : 983,419.17 = 406,729.10 : x
  2. Step 2: Convert to fraction form
    712,661.24/983,419.17 = 406,729.10/x
  3. Step 3: Cross multiply
    712,661.24x = 983,419.17 × 406,729.10
  4. Step 4: Simplify right side
    712,661.24x = 399,985,193,936.85
  5. Step 5: Solve for x
    x = 399,985,193,936.85/712,661.24
  6. Step 6: Final answer
    x = 561,255.72

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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.