Home / 1,916,979.80-2,645,440.71-1,045,811.85

Finding the Fourth Proportional to 1,916,979.80, 2,645,440.71 and 1,045,811.85

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Solution

The fourth proportional to 1,916,979.80, 2,645,440.71 and 1,045,811.85 is: 1,443,225.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,979.80 : 2,645,440.71 = 1,045,811.85 : x
  2. Step 2: Convert to fraction form
    1,916,979.80/2,645,440.71 = 1,045,811.85/x
  3. Step 3: Cross multiply
    1,916,979.80x = 2,645,440.71 × 1,045,811.85
  4. Step 4: Simplify right side
    1,916,979.80x = 2,766,633,248,989.02
  5. Step 5: Solve for x
    x = 2,766,633,248,989.02/1,916,979.80
  6. Step 6: Final answer
    x = 1,443,225.04

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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.