Home / 1,173,053.80-1,618,833.06-636,509.80

Finding the Fourth Proportional to 1,173,053.80, 1,618,833.06 and 636,509.80

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Solution

The fourth proportional to 1,173,053.80, 1,618,833.06 and 636,509.80 is: 878,393.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,053.80 : 1,618,833.06 = 636,509.80 : x
  2. Step 2: Convert to fraction form
    1,173,053.80/1,618,833.06 = 636,509.80/x
  3. Step 3: Cross multiply
    1,173,053.80x = 1,618,833.06 × 636,509.80
  4. Step 4: Simplify right side
    1,173,053.80x = 1,030,403,107,253.99
  5. Step 5: Solve for x
    x = 1,030,403,107,253.99/1,173,053.80
  6. Step 6: Final answer
    x = 878,393.73

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Why These Related Problems?

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