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Finding the Fourth Proportional to 692,740.88, 956,141.80 and 406,353.23

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Solution

The fourth proportional to 692,740.88, 956,141.80 and 406,353.23 is: 560,860.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,740.88 : 956,141.80 = 406,353.23 : x
  2. Step 2: Convert to fraction form
    692,740.88/956,141.80 = 406,353.23/x
  3. Step 3: Cross multiply
    692,740.88x = 956,141.80 × 406,353.23
  4. Step 4: Simplify right side
    692,740.88x = 388,531,306,736.25
  5. Step 5: Solve for x
    x = 388,531,306,736.25/692,740.88
  6. Step 6: Final answer
    x = 560,860.95

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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.