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Finding the Fourth Proportional to 389,062.52, 583,644.80 and 152,374.44

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Solution

The fourth proportional to 389,062.52, 583,644.80 and 152,374.44 is: 228,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,062.52 : 583,644.80 = 152,374.44 : x
  2. Step 2: Convert to fraction form
    389,062.52/583,644.80 = 152,374.44/x
  3. Step 3: Cross multiply
    389,062.52x = 583,644.80 × 152,374.44
  4. Step 4: Simplify right side
    389,062.52x = 88,932,549,558.91
  5. Step 5: Solve for x
    x = 88,932,549,558.91/389,062.52
  6. Step 6: Final answer
    x = 228,581.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.