Home / 442,944.57-611,050.91-289,915.39

Finding the Fourth Proportional to 442,944.57, 611,050.91 and 289,915.39

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Solution

The fourth proportional to 442,944.57, 611,050.91 and 289,915.39 is: 399,944.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,944.57 : 611,050.91 = 289,915.39 : x
  2. Step 2: Convert to fraction form
    442,944.57/611,050.91 = 289,915.39/x
  3. Step 3: Cross multiply
    442,944.57x = 611,050.91 × 289,915.39
  4. Step 4: Simplify right side
    442,944.57x = 177,153,062,882.51
  5. Step 5: Solve for x
    x = 177,153,062,882.51/442,944.57
  6. Step 6: Final answer
    x = 399,944.09

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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.