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Finding the Fourth Proportional to 703,403.88, 970,766.82 and 401,643.24

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Solution

The fourth proportional to 703,403.88, 970,766.82 and 401,643.24 is: 554,307.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,403.88 : 970,766.82 = 401,643.24 : x
  2. Step 2: Convert to fraction form
    703,403.88/970,766.82 = 401,643.24/x
  3. Step 3: Cross multiply
    703,403.88x = 970,766.82 × 401,643.24
  4. Step 4: Simplify right side
    703,403.88x = 389,901,930,869.30
  5. Step 5: Solve for x
    x = 389,901,930,869.30/703,403.88
  6. Step 6: Final answer
    x = 554,307.34

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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.