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Finding the Fourth Proportional to 576,829.37, 796,019.85 and 318,705.50

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Solution

The fourth proportional to 576,829.37, 796,019.85 and 318,705.50 is: 439,811.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,829.37 : 796,019.85 = 318,705.50 : x
  2. Step 2: Convert to fraction form
    576,829.37/796,019.85 = 318,705.50/x
  3. Step 3: Cross multiply
    576,829.37x = 796,019.85 × 318,705.50
  4. Step 4: Simplify right side
    576,829.37x = 253,695,904,304.18
  5. Step 5: Solve for x
    x = 253,695,904,304.18/576,829.37
  6. Step 6: Final answer
    x = 439,811.00

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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.