Home / 1,288,256.85-1,777,627.13-715,186.31

Finding the Fourth Proportional to 1,288,256.85, 1,777,627.13 and 715,186.31

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Solution

The fourth proportional to 1,288,256.85, 1,777,627.13 and 715,186.31 is: 986,864.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,256.85 : 1,777,627.13 = 715,186.31 : x
  2. Step 2: Convert to fraction form
    1,288,256.85/1,777,627.13 = 715,186.31/x
  3. Step 3: Cross multiply
    1,288,256.85x = 1,777,627.13 × 715,186.31
  4. Step 4: Simplify right side
    1,288,256.85x = 1,271,334,575,196.52
  5. Step 5: Solve for x
    x = 1,271,334,575,196.52/1,288,256.85
  6. Step 6: Final answer
    x = 986,864.21

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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.