Home / 2,518,178.40-3,776,830.20-919,918.80

Finding the Fourth Proportional to 2,518,178.40, 3,776,830.20 and 919,918.80

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Solution

The fourth proportional to 2,518,178.40, 3,776,830.20 and 919,918.80 is: 1,379,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518,178.40 : 3,776,830.20 = 919,918.80 : x
  2. Step 2: Convert to fraction form
    2,518,178.40/3,776,830.20 = 919,918.80/x
  3. Step 3: Cross multiply
    2,518,178.40x = 3,776,830.20 × 919,918.80
  4. Step 4: Simplify right side
    2,518,178.40x = 3,474,377,105,387.76
  5. Step 5: Solve for x
    x = 3,474,377,105,387.76/2,518,178.40
  6. Step 6: Final answer
    x = 1,379,718.41

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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.