Home / 1,078,399.40-1,618,247.10-447,247.40

Finding the Fourth Proportional to 1,078,399.40, 1,618,247.10 and 447,247.40

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Solution

The fourth proportional to 1,078,399.40, 1,618,247.10 and 447,247.40 is: 671,139.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,399.40 : 1,618,247.10 = 447,247.40 : x
  2. Step 2: Convert to fraction form
    1,078,399.40/1,618,247.10 = 447,247.40/x
  3. Step 3: Cross multiply
    1,078,399.40x = 1,618,247.10 × 447,247.40
  4. Step 4: Simplify right side
    1,078,399.40x = 723,756,808,032.54
  5. Step 5: Solve for x
    x = 723,756,808,032.54/1,078,399.40
  6. Step 6: Final answer
    x = 671,139.85

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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.