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Finding the Fourth Proportional to 359,140.38, 495,604.58 and 197,991.68

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Solution

The fourth proportional to 359,140.38, 495,604.58 and 197,991.68 is: 273,223.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,140.38 : 495,604.58 = 197,991.68 : x
  2. Step 2: Convert to fraction form
    359,140.38/495,604.58 = 197,991.68/x
  3. Step 3: Cross multiply
    359,140.38x = 495,604.58 × 197,991.68
  4. Step 4: Simplify right side
    359,140.38x = 98,125,583,409.89
  5. Step 5: Solve for x
    x = 98,125,583,409.89/359,140.38
  6. Step 6: Final answer
    x = 273,223.48

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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.