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Finding the Fourth Proportional to 692,238.59, 955,337.20 and 386,374.64

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Solution

The fourth proportional to 692,238.59, 955,337.20 and 386,374.64 is: 533,223.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,238.59 : 955,337.20 = 386,374.64 : x
  2. Step 2: Convert to fraction form
    692,238.59/955,337.20 = 386,374.64/x
  3. Step 3: Cross multiply
    692,238.59x = 955,337.20 × 386,374.64
  4. Step 4: Simplify right side
    692,238.59x = 369,118,062,408.39
  5. Step 5: Solve for x
    x = 369,118,062,408.39/692,238.59
  6. Step 6: Final answer
    x = 533,223.76

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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.