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Finding the Fourth Proportional to 496,314.20, 744,471.30 and 384,339.80

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Solution

The fourth proportional to 496,314.20, 744,471.30 and 384,339.80 is: 576,509.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,314.20 : 744,471.30 = 384,339.80 : x
  2. Step 2: Convert to fraction form
    496,314.20/744,471.30 = 384,339.80/x
  3. Step 3: Cross multiply
    496,314.20x = 744,471.30 × 384,339.80
  4. Step 4: Simplify right side
    496,314.20x = 286,129,950,547.74
  5. Step 5: Solve for x
    x = 286,129,950,547.74/496,314.20
  6. Step 6: Final answer
    x = 576,509.70

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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.