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Finding the Fourth Proportional to 506,671.98, 699,303.69 and 361,869.90

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Solution

The fourth proportional to 506,671.98, 699,303.69 and 361,869.90 is: 499,449.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,671.98 : 699,303.69 = 361,869.90 : x
  2. Step 2: Convert to fraction form
    506,671.98/699,303.69 = 361,869.90/x
  3. Step 3: Cross multiply
    506,671.98x = 699,303.69 × 361,869.90
  4. Step 4: Simplify right side
    506,671.98x = 253,056,956,369.93
  5. Step 5: Solve for x
    x = 253,056,956,369.93/506,671.98
  6. Step 6: Final answer
    x = 499,449.28

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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.