Home / 679,141.40-936,824.80-424,049.72

Finding the Fourth Proportional to 679,141.40, 936,824.80 and 424,049.72

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Solution

The fourth proportional to 679,141.40, 936,824.80 and 424,049.72 is: 584,944.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,141.40 : 936,824.80 = 424,049.72 : x
  2. Step 2: Convert to fraction form
    679,141.40/936,824.80 = 424,049.72/x
  3. Step 3: Cross multiply
    679,141.40x = 936,824.80 × 424,049.72
  4. Step 4: Simplify right side
    679,141.40x = 397,260,294,129.06
  5. Step 5: Solve for x
    x = 397,260,294,129.06/679,141.40
  6. Step 6: Final answer
    x = 584,944.89

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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.