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Finding the Fourth Proportional to 633,969.30, 874,967.22 and 392,329.62

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Solution

The fourth proportional to 633,969.30, 874,967.22 and 392,329.62 is: 541,470.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,969.30 : 874,967.22 = 392,329.62 : x
  2. Step 2: Convert to fraction form
    633,969.30/874,967.22 = 392,329.62/x
  3. Step 3: Cross multiply
    633,969.30x = 874,967.22 × 392,329.62
  4. Step 4: Simplify right side
    633,969.30x = 343,275,556,935.06
  5. Step 5: Solve for x
    x = 343,275,556,935.06/633,969.30
  6. Step 6: Final answer
    x = 541,470.32

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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.