Home / 1,916,766.80-2,645,988.36-1,238,034.32

Finding the Fourth Proportional to 1,916,766.80, 2,645,988.36 and 1,238,034.32

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Solution

The fourth proportional to 1,916,766.80, 2,645,988.36 and 1,238,034.32 is: 1,709,036.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,766.80 : 2,645,988.36 = 1,238,034.32 : x
  2. Step 2: Convert to fraction form
    1,916,766.80/2,645,988.36 = 1,238,034.32/x
  3. Step 3: Cross multiply
    1,916,766.80x = 2,645,988.36 × 1,238,034.32
  4. Step 4: Simplify right side
    1,916,766.80x = 3,275,824,400,000.52
  5. Step 5: Solve for x
    x = 3,275,824,400,000.52/1,916,766.80
  6. Step 6: Final answer
    x = 1,709,036.49

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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.