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Finding the Fourth Proportional to 692,765.40, 956,233.98 and 406,401.24

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Solution

The fourth proportional to 692,765.40, 956,233.98 and 406,401.24 is: 560,961.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,765.40 : 956,233.98 = 406,401.24 : x
  2. Step 2: Convert to fraction form
    692,765.40/956,233.98 = 406,401.24/x
  3. Step 3: Cross multiply
    692,765.40x = 956,233.98 × 406,401.24
  4. Step 4: Simplify right side
    692,765.40x = 388,614,675,202.14
  5. Step 5: Solve for x
    x = 388,614,675,202.14/692,765.40
  6. Step 6: Final answer
    x = 560,961.44

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1.5x scale

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.