Home / 699,539.10-965,525.32-409,285.74

Finding the Fourth Proportional to 699,539.10, 965,525.32 and 409,285.74

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Solution

The fourth proportional to 699,539.10, 965,525.32 and 409,285.74 is: 564,908.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,539.10 : 965,525.32 = 409,285.74 : x
  2. Step 2: Convert to fraction form
    699,539.10/965,525.32 = 409,285.74/x
  3. Step 3: Cross multiply
    699,539.10x = 965,525.32 × 409,285.74
  4. Step 4: Simplify right side
    699,539.10x = 395,175,745,084.94
  5. Step 5: Solve for x
    x = 395,175,745,084.94/699,539.10
  6. Step 6: Final answer
    x = 564,908.73

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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.