Home / 664,023.69-916,260.26-377,512.11

Finding the Fourth Proportional to 664,023.69, 916,260.26 and 377,512.11

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Solution

The fourth proportional to 664,023.69, 916,260.26 and 377,512.11 is: 520,914.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,023.69 : 916,260.26 = 377,512.11 : x
  2. Step 2: Convert to fraction form
    664,023.69/916,260.26 = 377,512.11/x
  3. Step 3: Cross multiply
    664,023.69x = 916,260.26 × 377,512.11
  4. Step 4: Simplify right side
    664,023.69x = 345,899,342,174.19
  5. Step 5: Solve for x
    x = 345,899,342,174.19/664,023.69
  6. Step 6: Final answer
    x = 520,914.16

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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.