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Finding the Fourth Proportional to 692,654.20, 955,853.44 and 386,735.27

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Solution

The fourth proportional to 692,654.20, 955,853.44 and 386,735.27 is: 533,689.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,654.20 : 955,853.44 = 386,735.27 : x
  2. Step 2: Convert to fraction form
    692,654.20/955,853.44 = 386,735.27/x
  3. Step 3: Cross multiply
    692,654.20x = 955,853.44 × 386,735.27
  4. Step 4: Simplify right side
    692,654.20x = 369,662,232,452.72
  5. Step 5: Solve for x
    x = 369,662,232,452.72/692,654.20
  6. Step 6: Final answer
    x = 533,689.44

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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.