Home / 1,641,780.90-2,265,702.84-916,600.86

Finding the Fourth Proportional to 1,641,780.90, 2,265,702.84 and 916,600.86

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Solution

The fourth proportional to 1,641,780.90, 2,265,702.84 and 916,600.86 is: 1,264,934.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641,780.90 : 2,265,702.84 = 916,600.86 : x
  2. Step 2: Convert to fraction form
    1,641,780.90/2,265,702.84 = 916,600.86/x
  3. Step 3: Cross multiply
    1,641,780.90x = 2,265,702.84 × 916,600.86
  4. Step 4: Simplify right side
    1,641,780.90x = 2,076,745,171,648.44
  5. Step 5: Solve for x
    x = 2,076,745,171,648.44/1,641,780.90
  6. Step 6: Final answer
    x = 1,264,934.42

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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.