Home / 1,314,577.80-1,971,860.30-515,294.60

Finding the Fourth Proportional to 1,314,577.80, 1,971,860.30 and 515,294.60

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Solution

The fourth proportional to 1,314,577.80, 1,971,860.30 and 515,294.60 is: 772,939.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,577.80 : 1,971,860.30 = 515,294.60 : x
  2. Step 2: Convert to fraction form
    1,314,577.80/1,971,860.30 = 515,294.60/x
  3. Step 3: Cross multiply
    1,314,577.80x = 1,971,860.30 × 515,294.60
  4. Step 4: Simplify right side
    1,314,577.80x = 1,016,088,964,544.38
  5. Step 5: Solve for x
    x = 1,016,088,964,544.38/1,314,577.80
  6. Step 6: Final answer
    x = 772,939.39

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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.