Home / 1,386,293.28-2,079,423.45-439,672.20

Finding the Fourth Proportional to 1,386,293.28, 2,079,423.45 and 439,672.20

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Solution

The fourth proportional to 1,386,293.28, 2,079,423.45 and 439,672.20 is: 659,503.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,293.28 : 2,079,423.45 = 439,672.20 : x
  2. Step 2: Convert to fraction form
    1,386,293.28/2,079,423.45 = 439,672.20/x
  3. Step 3: Cross multiply
    1,386,293.28x = 2,079,423.45 × 439,672.20
  4. Step 4: Simplify right side
    1,386,293.28x = 914,264,682,993.09
  5. Step 5: Solve for x
    x = 914,264,682,993.09/1,386,293.28
  6. Step 6: Final answer
    x = 659,503.08

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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.