Home / 1,259,236.60-1,889,085.30-511,358.20

Finding the Fourth Proportional to 1,259,236.60, 1,889,085.30 and 511,358.20

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Solution

The fourth proportional to 1,259,236.60, 1,889,085.30 and 511,358.20 is: 767,130.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,236.60 : 1,889,085.30 = 511,358.20 : x
  2. Step 2: Convert to fraction form
    1,259,236.60/1,889,085.30 = 511,358.20/x
  3. Step 3: Cross multiply
    1,259,236.60x = 1,889,085.30 × 511,358.20
  4. Step 4: Simplify right side
    1,259,236.60x = 965,999,258,654.46
  5. Step 5: Solve for x
    x = 965,999,258,654.46/1,259,236.60
  6. Step 6: Final answer
    x = 767,130.86

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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.