Home / 662,983.80-995,342.94-393,603.72

Finding the Fourth Proportional to 662,983.80, 995,342.94 and 393,603.72

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Solution

The fourth proportional to 662,983.80, 995,342.94 and 393,603.72 is: 590,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,983.80 : 995,342.94 = 393,603.72 : x
  2. Step 2: Convert to fraction form
    662,983.80/995,342.94 = 393,603.72/x
  3. Step 3: Cross multiply
    662,983.80x = 995,342.94 × 393,603.72
  4. Step 4: Simplify right side
    662,983.80x = 391,770,683,859.74
  5. Step 5: Solve for x
    x = 391,770,683,859.74/662,983.80
  6. Step 6: Final answer
    x = 590,920.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.