Home / 1,177,665.20-1,766,497.80-430,002.80

Finding the Fourth Proportional to 1,177,665.20, 1,766,497.80 and 430,002.80

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Solution

The fourth proportional to 1,177,665.20, 1,766,497.80 and 430,002.80 is: 645,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,665.20 : 1,766,497.80 = 430,002.80 : x
  2. Step 2: Convert to fraction form
    1,177,665.20/1,766,497.80 = 430,002.80/x
  3. Step 3: Cross multiply
    1,177,665.20x = 1,766,497.80 × 430,002.80
  4. Step 4: Simplify right side
    1,177,665.20x = 759,599,000,193.84
  5. Step 5: Solve for x
    x = 759,599,000,193.84/1,177,665.20
  6. Step 6: Final answer
    x = 645,004.20

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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.