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Finding the Fourth Proportional to 491,230.40, 737,234.40 and 191,854.40

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Solution

The fourth proportional to 491,230.40, 737,234.40 and 191,854.40 is: 287,933.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,230.40 : 737,234.40 = 191,854.40 : x
  2. Step 2: Convert to fraction form
    491,230.40/737,234.40 = 191,854.40/x
  3. Step 3: Cross multiply
    491,230.40x = 737,234.40 × 191,854.40
  4. Step 4: Simplify right side
    491,230.40x = 141,441,663,471.36
  5. Step 5: Solve for x
    x = 141,441,663,471.36/491,230.40
  6. Step 6: Final answer
    x = 287,933.45

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1.5x scale

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.