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Finding the Fourth Proportional to 359,089.89, 495,521.78 and 197,936.61

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Solution

The fourth proportional to 359,089.89, 495,521.78 and 197,936.61 is: 273,140.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,089.89 : 495,521.78 = 197,936.61 : x
  2. Step 2: Convert to fraction form
    359,089.89/495,521.78 = 197,936.61/x
  3. Step 3: Cross multiply
    359,089.89x = 495,521.78 × 197,936.61
  4. Step 4: Simplify right side
    359,089.89x = 98,081,899,331.60
  5. Step 5: Solve for x
    x = 98,081,899,331.60/359,089.89
  6. Step 6: Final answer
    x = 273,140.25

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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.