Home / 863,519.58-1,191,985.29-649,281.78

Finding the Fourth Proportional to 863,519.58, 1,191,985.29 and 649,281.78

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Solution

The fourth proportional to 863,519.58, 1,191,985.29 and 649,281.78 is: 896,255.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,519.58 : 1,191,985.29 = 649,281.78 : x
  2. Step 2: Convert to fraction form
    863,519.58/1,191,985.29 = 649,281.78/x
  3. Step 3: Cross multiply
    863,519.58x = 1,191,985.29 × 649,281.78
  4. Step 4: Simplify right side
    863,519.58x = 773,934,330,825.02
  5. Step 5: Solve for x
    x = 773,934,330,825.02/863,519.58
  6. Step 6: Final answer
    x = 896,255.68

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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.