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Finding the Fourth Proportional to 496,886.30, 745,329.45 and 442,972.70

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Solution

The fourth proportional to 496,886.30, 745,329.45 and 442,972.70 is: 664,459.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,886.30 : 745,329.45 = 442,972.70 : x
  2. Step 2: Convert to fraction form
    496,886.30/745,329.45 = 442,972.70/x
  3. Step 3: Cross multiply
    496,886.30x = 745,329.45 × 442,972.70
  4. Step 4: Simplify right side
    496,886.30x = 330,160,598,856.02
  5. Step 5: Solve for x
    x = 330,160,598,856.02/496,886.30
  6. Step 6: Final answer
    x = 664,459.05

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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.