Home / 690,216.23-952,351.98-435,419.75

Finding the Fourth Proportional to 690,216.23, 952,351.98 and 435,419.75

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Solution

The fourth proportional to 690,216.23, 952,351.98 and 435,419.75 is: 600,786.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,216.23 : 952,351.98 = 435,419.75 : x
  2. Step 2: Convert to fraction form
    690,216.23/952,351.98 = 435,419.75/x
  3. Step 3: Cross multiply
    690,216.23x = 952,351.98 × 435,419.75
  4. Step 4: Simplify right side
    690,216.23x = 414,672,861,043.61
  5. Step 5: Solve for x
    x = 414,672,861,043.61/690,216.23
  6. Step 6: Final answer
    x = 600,786.89

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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.