Home / 1,760,263.80-2,638,646.10-811,980.60

Finding the Fourth Proportional to 1,760,263.80, 2,638,646.10 and 811,980.60

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Solution

The fourth proportional to 1,760,263.80, 2,638,646.10 and 811,980.60 is: 1,217,163.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760,263.80 : 2,638,646.10 = 811,980.60 : x
  2. Step 2: Convert to fraction form
    1,760,263.80/2,638,646.10 = 811,980.60/x
  3. Step 3: Cross multiply
    1,760,263.80x = 2,638,646.10 × 811,980.60
  4. Step 4: Simplify right side
    1,760,263.80x = 2,142,529,443,465.66
  5. Step 5: Solve for x
    x = 2,142,529,443,465.66/1,760,263.80
  6. Step 6: Final answer
    x = 1,217,163.84

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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.