Home / 515,020.14-710,715.06-285,578.33

Finding the Fourth Proportional to 515,020.14, 710,715.06 and 285,578.33

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Solution

The fourth proportional to 515,020.14, 710,715.06 and 285,578.33 is: 394,091.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,020.14 : 710,715.06 = 285,578.33 : x
  2. Step 2: Convert to fraction form
    515,020.14/710,715.06 = 285,578.33/x
  3. Step 3: Cross multiply
    515,020.14x = 710,715.06 × 285,578.33
  4. Step 4: Simplify right side
    515,020.14x = 202,964,816,387.08
  5. Step 5: Solve for x
    x = 202,964,816,387.08/515,020.14
  6. Step 6: Final answer
    x = 394,091.03

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1.5x scale

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.