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Finding the Fourth Proportional to 692,238.34, 955,336.85 and 386,374.39

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Solution

The fourth proportional to 692,238.34, 955,336.85 and 386,374.39 is: 533,223.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,238.34 : 955,336.85 = 386,374.39 : x
  2. Step 2: Convert to fraction form
    692,238.34/955,336.85 = 386,374.39/x
  3. Step 3: Cross multiply
    692,238.34x = 955,336.85 × 386,374.39
  4. Step 4: Simplify right side
    692,238.34x = 369,117,689,791.96
  5. Step 5: Solve for x
    x = 369,117,689,791.96/692,238.34
  6. Step 6: Final answer
    x = 533,223.42

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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.