Home / 679,131.39-936,811.02-424,039.71

Finding the Fourth Proportional to 679,131.39, 936,811.02 and 424,039.71

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Solution

The fourth proportional to 679,131.39, 936,811.02 and 424,039.71 is: 584,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,131.39 : 936,811.02 = 424,039.71 : x
  2. Step 2: Convert to fraction form
    679,131.39/936,811.02 = 424,039.71/x
  3. Step 3: Cross multiply
    679,131.39x = 936,811.02 × 424,039.71
  4. Step 4: Simplify right side
    679,131.39x = 397,245,073,245.60
  5. Step 5: Solve for x
    x = 397,245,073,245.60/679,131.39
  6. Step 6: Final answer
    x = 584,931.10

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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.