Home / 686,856.60-1,030,284.90-188,220.60

Finding the Fourth Proportional to 686,856.60, 1,030,284.90 and 188,220.60

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Solution

The fourth proportional to 686,856.60, 1,030,284.90 and 188,220.60 is: 282,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,856.60 : 1,030,284.90 = 188,220.60 : x
  2. Step 2: Convert to fraction form
    686,856.60/1,030,284.90 = 188,220.60/x
  3. Step 3: Cross multiply
    686,856.60x = 1,030,284.90 × 188,220.60
  4. Step 4: Simplify right side
    686,856.60x = 193,920,842,048.94
  5. Step 5: Solve for x
    x = 193,920,842,048.94/686,856.60
  6. Step 6: Final answer
    x = 282,330.90

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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.