Home / 557,106.45-768,799.46-315,382.83

Finding the Fourth Proportional to 557,106.45, 768,799.46 and 315,382.83

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Solution

The fourth proportional to 557,106.45, 768,799.46 and 315,382.83 is: 435,224.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,106.45 : 768,799.46 = 315,382.83 : x
  2. Step 2: Convert to fraction form
    557,106.45/768,799.46 = 315,382.83/x
  3. Step 3: Cross multiply
    557,106.45x = 768,799.46 × 315,382.83
  4. Step 4: Simplify right side
    557,106.45x = 242,466,147,820.36
  5. Step 5: Solve for x
    x = 242,466,147,820.36/557,106.45
  6. Step 6: Final answer
    x = 435,224.09

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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.