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Finding the Fourth Proportional to 359,340.30, 495,888.62 and 206,388.42

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Solution

The fourth proportional to 359,340.30, 495,888.62 and 206,388.42 is: 284,815.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,340.30 : 495,888.62 = 206,388.42 : x
  2. Step 2: Convert to fraction form
    359,340.30/495,888.62 = 206,388.42/x
  3. Step 3: Cross multiply
    359,340.30x = 495,888.62 × 206,388.42
  4. Step 4: Simplify right side
    359,340.30x = 102,345,668,777.78
  5. Step 5: Solve for x
    x = 102,345,668,777.78/359,340.30
  6. Step 6: Final answer
    x = 284,815.45

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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.