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Finding the Fourth Proportional to 692,789.73, 955,965.47 and 386,883.11

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Solution

The fourth proportional to 692,789.73, 955,965.47 and 386,883.11 is: 533,851.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,789.73 : 955,965.47 = 386,883.11 : x
  2. Step 2: Convert to fraction form
    692,789.73/955,965.47 = 386,883.11/x
  3. Step 3: Cross multiply
    692,789.73x = 955,965.47 × 386,883.11
  4. Step 4: Simplify right side
    692,789.73x = 369,846,887,371.97
  5. Step 5: Solve for x
    x = 369,846,887,371.97/692,789.73
  6. Step 6: Final answer
    x = 533,851.57

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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.