Home / 686,969.60-1,030,257.48-231,511.24

Finding the Fourth Proportional to 686,969.60, 1,030,257.48 and 231,511.24

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Solution

The fourth proportional to 686,969.60, 1,030,257.48 and 231,511.24 is: 347,200.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,969.60 : 1,030,257.48 = 231,511.24 : x
  2. Step 2: Convert to fraction form
    686,969.60/1,030,257.48 = 231,511.24/x
  3. Step 3: Cross multiply
    686,969.60x = 1,030,257.48 × 231,511.24
  4. Step 4: Simplify right side
    686,969.60x = 238,516,186,714.08
  5. Step 5: Solve for x
    x = 238,516,186,714.08/686,969.60
  6. Step 6: Final answer
    x = 347,200.50

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Double scale
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Similar ratio
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1.5x scale

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.