Home / 828,661.36-1,144,678.35-649,633.54

Finding the Fourth Proportional to 828,661.36, 1,144,678.35 and 649,633.54

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Solution

The fourth proportional to 828,661.36, 1,144,678.35 and 649,633.54 is: 897,376.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,661.36 : 1,144,678.35 = 649,633.54 : x
  2. Step 2: Convert to fraction form
    828,661.36/1,144,678.35 = 649,633.54/x
  3. Step 3: Cross multiply
    828,661.36x = 1,144,678.35 × 649,633.54
  4. Step 4: Simplify right side
    828,661.36x = 743,621,448,671.86
  5. Step 5: Solve for x
    x = 743,621,448,671.86/828,661.36
  6. Step 6: Final answer
    x = 897,376.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.