Home / 986,564.40-1,479,409.20-453,811.20

Finding the Fourth Proportional to 986,564.40, 1,479,409.20 and 453,811.20

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Solution

The fourth proportional to 986,564.40, 1,479,409.20 and 453,811.20 is: 680,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,564.40 : 1,479,409.20 = 453,811.20 : x
  2. Step 2: Convert to fraction form
    986,564.40/1,479,409.20 = 453,811.20/x
  3. Step 3: Cross multiply
    986,564.40x = 1,479,409.20 × 453,811.20
  4. Step 4: Simplify right side
    986,564.40x = 671,372,464,343.04
  5. Step 5: Solve for x
    x = 671,372,464,343.04/986,564.40
  6. Step 6: Final answer
    x = 680,515.60

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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.