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Finding the Fourth Proportional to 359,136.32, 495,606.33 and 197,990.87

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Solution

The fourth proportional to 359,136.32, 495,606.33 and 197,990.87 is: 273,226.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,136.32 : 495,606.33 = 197,990.87 : x
  2. Step 2: Convert to fraction form
    359,136.32/495,606.33 = 197,990.87/x
  3. Step 3: Cross multiply
    359,136.32x = 495,606.33 × 197,990.87
  4. Step 4: Simplify right side
    359,136.32x = 98,125,525,976.18
  5. Step 5: Solve for x
    x = 98,125,525,976.18/359,136.32
  6. Step 6: Final answer
    x = 273,226.41

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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.