Home / 1,188,827.86-1,640,585.59-644,963.64

Finding the Fourth Proportional to 1,188,827.86, 1,640,585.59 and 644,963.64

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Solution

The fourth proportional to 1,188,827.86, 1,640,585.59 and 644,963.64 is: 890,051.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,827.86 : 1,640,585.59 = 644,963.64 : x
  2. Step 2: Convert to fraction form
    1,188,827.86/1,640,585.59 = 644,963.64/x
  3. Step 3: Cross multiply
    1,188,827.86x = 1,640,585.59 × 644,963.64
  4. Step 4: Simplify right side
    1,188,827.86x = 1,058,118,045,655.02
  5. Step 5: Solve for x
    x = 1,058,118,045,655.02/1,188,827.86
  6. Step 6: Final answer
    x = 890,051.52

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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.