Home / 986,301.90-1,479,015.45-453,986.10

Finding the Fourth Proportional to 986,301.90, 1,479,015.45 and 453,986.10

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Solution

The fourth proportional to 986,301.90, 1,479,015.45 and 453,986.10 is: 680,777.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,301.90 : 1,479,015.45 = 453,986.10 : x
  2. Step 2: Convert to fraction form
    986,301.90/1,479,015.45 = 453,986.10/x
  3. Step 3: Cross multiply
    986,301.90x = 1,479,015.45 × 453,986.10
  4. Step 4: Simplify right side
    986,301.90x = 671,452,455,985.25
  5. Step 5: Solve for x
    x = 671,452,455,985.25/986,301.90
  6. Step 6: Final answer
    x = 680,777.82

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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.