Home / 1,277,228.64-1,915,850.52-378,678.24

Finding the Fourth Proportional to 1,277,228.64, 1,915,850.52 and 378,678.24

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Solution

The fourth proportional to 1,277,228.64, 1,915,850.52 and 378,678.24 is: 568,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,228.64 : 1,915,850.52 = 378,678.24 : x
  2. Step 2: Convert to fraction form
    1,277,228.64/1,915,850.52 = 378,678.24/x
  3. Step 3: Cross multiply
    1,277,228.64x = 1,915,850.52 × 378,678.24
  4. Step 4: Simplify right side
    1,277,228.64x = 725,490,903,016.69
  5. Step 5: Solve for x
    x = 725,490,903,016.69/1,277,228.64
  6. Step 6: Final answer
    x = 568,019.60

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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.