Home / 1,386,380.16-1,913,294.40-774,536.21

Finding the Fourth Proportional to 1,386,380.16, 1,913,294.40 and 774,536.21

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Solution

The fourth proportional to 1,386,380.16, 1,913,294.40 and 774,536.21 is: 1,068,910.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,380.16 : 1,913,294.40 = 774,536.21 : x
  2. Step 2: Convert to fraction form
    1,386,380.16/1,913,294.40 = 774,536.21/x
  3. Step 3: Cross multiply
    1,386,380.16x = 1,913,294.40 × 774,536.21
  4. Step 4: Simplify right side
    1,386,380.16x = 1,481,915,783,623.75
  5. Step 5: Solve for x
    x = 1,481,915,783,623.75/1,386,380.16
  6. Step 6: Final answer
    x = 1,068,910.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.