Home / 705,820.35-974,028.69-399,896.12

Finding the Fourth Proportional to 705,820.35, 974,028.69 and 399,896.12

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Solution

The fourth proportional to 705,820.35, 974,028.69 and 399,896.12 is: 551,854.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,820.35 : 974,028.69 = 399,896.12 : x
  2. Step 2: Convert to fraction form
    705,820.35/974,028.69 = 399,896.12/x
  3. Step 3: Cross multiply
    705,820.35x = 974,028.69 × 399,896.12
  4. Step 4: Simplify right side
    705,820.35x = 389,510,294,835.14
  5. Step 5: Solve for x
    x = 389,510,294,835.14/705,820.35
  6. Step 6: Final answer
    x = 551,854.73

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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.