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Finding the Fourth Proportional to 358,987.94, 495,401.23 and 195,644.25

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Solution

The fourth proportional to 358,987.94, 495,401.23 and 195,644.25 is: 269,987.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,987.94 : 495,401.23 = 195,644.25 : x
  2. Step 2: Convert to fraction form
    358,987.94/495,401.23 = 195,644.25/x
  3. Step 3: Cross multiply
    358,987.94x = 495,401.23 × 195,644.25
  4. Step 4: Simplify right side
    358,987.94x = 96,922,402,092.43
  5. Step 5: Solve for x
    x = 96,922,402,092.43/358,987.94
  6. Step 6: Final answer
    x = 269,987.91

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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.