Home / 686,908.60-1,030,352.10-188,272.60

Finding the Fourth Proportional to 686,908.60, 1,030,352.10 and 188,272.60

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Solution

The fourth proportional to 686,908.60, 1,030,352.10 and 188,272.60 is: 282,405.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,908.60 : 1,030,352.10 = 188,272.60 : x
  2. Step 2: Convert to fraction form
    686,908.60/1,030,352.10 = 188,272.60/x
  3. Step 3: Cross multiply
    686,908.60x = 1,030,352.10 × 188,272.60
  4. Step 4: Simplify right side
    686,908.60x = 193,987,068,782.46
  5. Step 5: Solve for x
    x = 193,987,068,782.46/686,908.60
  6. Step 6: Final answer
    x = 282,405.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.