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Finding the Fourth Proportional to 359,048.24, 495,486.60 and 208,232.72

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Solution

The fourth proportional to 359,048.24, 495,486.60 and 208,232.72 is: 287,361.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,048.24 : 495,486.60 = 208,232.72 : x
  2. Step 2: Convert to fraction form
    359,048.24/495,486.60 = 208,232.72/x
  3. Step 3: Cross multiply
    359,048.24x = 495,486.60 × 208,232.72
  4. Step 4: Simplify right side
    359,048.24x = 103,176,522,441.55
  5. Step 5: Solve for x
    x = 103,176,522,441.55/359,048.24
  6. Step 6: Final answer
    x = 287,361.17

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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.