Home / 579,145.55-799,220.32-324,498.56

Finding the Fourth Proportional to 579,145.55, 799,220.32 and 324,498.56

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Solution

The fourth proportional to 579,145.55, 799,220.32 and 324,498.56 is: 447,807.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,145.55 : 799,220.32 = 324,498.56 : x
  2. Step 2: Convert to fraction form
    579,145.55/799,220.32 = 324,498.56/x
  3. Step 3: Cross multiply
    579,145.55x = 799,220.32 × 324,498.56
  4. Step 4: Simplify right side
    579,145.55x = 259,345,838,155.39
  5. Step 5: Solve for x
    x = 259,345,838,155.39/579,145.55
  6. Step 6: Final answer
    x = 447,807.71

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Half scale
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Double scale
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Similar ratio
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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.