Home / 1,386,300.60-2,079,450.90-439,745.40

Finding the Fourth Proportional to 1,386,300.60, 2,079,450.90 and 439,745.40

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Solution

The fourth proportional to 1,386,300.60, 2,079,450.90 and 439,745.40 is: 659,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,300.60 : 2,079,450.90 = 439,745.40 : x
  2. Step 2: Convert to fraction form
    1,386,300.60/2,079,450.90 = 439,745.40/x
  3. Step 3: Cross multiply
    1,386,300.60x = 2,079,450.90 × 439,745.40
  4. Step 4: Simplify right side
    1,386,300.60x = 914,428,967,800.86
  5. Step 5: Solve for x
    x = 914,428,967,800.86/1,386,300.60
  6. Step 6: Final answer
    x = 659,618.10

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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.