Home / 865,504.62-1,194,333.81-478,315.41

Finding the Fourth Proportional to 865,504.62, 1,194,333.81 and 478,315.41

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Solution

The fourth proportional to 865,504.62, 1,194,333.81 and 478,315.41 is: 660,040.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,504.62 : 1,194,333.81 = 478,315.41 : x
  2. Step 2: Convert to fraction form
    865,504.62/1,194,333.81 = 478,315.41/x
  3. Step 3: Cross multiply
    865,504.62x = 1,194,333.81 × 478,315.41
  4. Step 4: Simplify right side
    865,504.62x = 571,268,266,007.01
  5. Step 5: Solve for x
    x = 571,268,266,007.01/865,504.62
  6. Step 6: Final answer
    x = 660,040.69

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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.