Home / 986,619.60-1,479,762.48-276,484.20

Finding the Fourth Proportional to 986,619.60, 1,479,762.48 and 276,484.20

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Solution

The fourth proportional to 986,619.60, 1,479,762.48 and 276,484.20 is: 414,679.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,619.60 : 1,479,762.48 = 276,484.20 : x
  2. Step 2: Convert to fraction form
    986,619.60/1,479,762.48 = 276,484.20/x
  3. Step 3: Cross multiply
    986,619.60x = 1,479,762.48 × 276,484.20
  4. Step 4: Simplify right side
    986,619.60x = 409,130,945,472.82
  5. Step 5: Solve for x
    x = 409,130,945,472.82/986,619.60
  6. Step 6: Final answer
    x = 414,679.52

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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.