Home / 628,701.38-943,119.56-268,909.60

Finding the Fourth Proportional to 628,701.38, 943,119.56 and 268,909.60

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Solution

The fourth proportional to 628,701.38, 943,119.56 and 268,909.60 is: 403,393.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,701.38 : 943,119.56 = 268,909.60 : x
  2. Step 2: Convert to fraction form
    628,701.38/943,119.56 = 268,909.60/x
  3. Step 3: Cross multiply
    628,701.38x = 943,119.56 × 268,909.60
  4. Step 4: Simplify right side
    628,701.38x = 253,613,903,631.78
  5. Step 5: Solve for x
    x = 253,613,903,631.78/628,701.38
  6. Step 6: Final answer
    x = 403,393.27

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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.