Home / 640,828.14-961,820.01-341,557.98

Finding the Fourth Proportional to 640,828.14, 961,820.01 and 341,557.98

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Solution

The fourth proportional to 640,828.14, 961,820.01 and 341,557.98 is: 512,644.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,828.14 : 961,820.01 = 341,557.98 : x
  2. Step 2: Convert to fraction form
    640,828.14/961,820.01 = 341,557.98/x
  3. Step 3: Cross multiply
    640,828.14x = 961,820.01 × 341,557.98
  4. Step 4: Simplify right side
    640,828.14x = 328,517,299,739.18
  5. Step 5: Solve for x
    x = 328,517,299,739.18/640,828.14
  6. Step 6: Final answer
    x = 512,644.93

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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.