Home / 1,191,121.51-1,643,746.43-647,256.00

Finding the Fourth Proportional to 1,191,121.51, 1,643,746.43 and 647,256.00

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Solution

The fourth proportional to 1,191,121.51, 1,643,746.43 and 647,256.00 is: 893,212.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,121.51 : 1,643,746.43 = 647,256.00 : x
  2. Step 2: Convert to fraction form
    1,191,121.51/1,643,746.43 = 647,256.00/x
  3. Step 3: Cross multiply
    1,191,121.51x = 1,643,746.43 × 647,256.00
  4. Step 4: Simplify right side
    1,191,121.51x = 1,063,924,747,078.27
  5. Step 5: Solve for x
    x = 1,063,924,747,078.27/1,191,121.51
  6. Step 6: Final answer
    x = 893,212.61

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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.