Home / 640,941.96-884,610.84-386,293.36

Finding the Fourth Proportional to 640,941.96, 884,610.84 and 386,293.36

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Solution

The fourth proportional to 640,941.96, 884,610.84 and 386,293.36 is: 533,151.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,941.96 : 884,610.84 = 386,293.36 : x
  2. Step 2: Convert to fraction form
    640,941.96/884,610.84 = 386,293.36/x
  3. Step 3: Cross multiply
    640,941.96x = 884,610.84 × 386,293.36
  4. Step 4: Simplify right side
    640,941.96x = 341,719,293,676.02
  5. Step 5: Solve for x
    x = 341,719,293,676.02/640,941.96
  6. Step 6: Final answer
    x = 533,151.70

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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.