Home / 641,727.40-961,554.30-404,645.80

Finding the Fourth Proportional to 641,727.40, 961,554.30 and 404,645.80

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Solution

The fourth proportional to 641,727.40, 961,554.30 and 404,645.80 is: 606,314.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,727.40 : 961,554.30 = 404,645.80 : x
  2. Step 2: Convert to fraction form
    641,727.40/961,554.30 = 404,645.80/x
  3. Step 3: Cross multiply
    641,727.40x = 961,554.30 × 404,645.80
  4. Step 4: Simplify right side
    641,727.40x = 389,088,908,966.94
  5. Step 5: Solve for x
    x = 389,088,908,966.94/641,727.40
  6. Step 6: Final answer
    x = 606,314.94

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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.