Home / 661,193.03-912,382.61-370,816.38

Finding the Fourth Proportional to 661,193.03, 912,382.61 and 370,816.38

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Solution

The fourth proportional to 661,193.03, 912,382.61 and 370,816.38 is: 511,690.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,193.03 : 912,382.61 = 370,816.38 : x
  2. Step 2: Convert to fraction form
    661,193.03/912,382.61 = 370,816.38/x
  3. Step 3: Cross multiply
    661,193.03x = 912,382.61 × 370,816.38
  4. Step 4: Simplify right side
    661,193.03x = 338,326,416,615.15
  5. Step 5: Solve for x
    x = 338,326,416,615.15/661,193.03
  6. Step 6: Final answer
    x = 511,690.84

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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.