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Finding the Fourth Proportional to 633,812.94, 874,668.76 and 347,326.88

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Solution

The fourth proportional to 633,812.94, 874,668.76 and 347,326.88 is: 479,314.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,812.94 : 874,668.76 = 347,326.88 : x
  2. Step 2: Convert to fraction form
    633,812.94/874,668.76 = 347,326.88/x
  3. Step 3: Cross multiply
    633,812.94x = 874,668.76 × 347,326.88
  4. Step 4: Simplify right side
    633,812.94x = 303,795,966,202.61
  5. Step 5: Solve for x
    x = 303,795,966,202.61/633,812.94
  6. Step 6: Final answer
    x = 479,314.87

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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.