Home / 864,068.80-1,296,103.20-811,580.80

Finding the Fourth Proportional to 864,068.80, 1,296,103.20 and 811,580.80

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Solution

The fourth proportional to 864,068.80, 1,296,103.20 and 811,580.80 is: 1,217,371.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,068.80 : 1,296,103.20 = 811,580.80 : x
  2. Step 2: Convert to fraction form
    864,068.80/1,296,103.20 = 811,580.80/x
  3. Step 3: Cross multiply
    864,068.80x = 1,296,103.20 × 811,580.80
  4. Step 4: Simplify right side
    864,068.80x = 1,051,892,471,938.56
  5. Step 5: Solve for x
    x = 1,051,892,471,938.56/864,068.80
  6. Step 6: Final answer
    x = 1,217,371.20

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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.