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Finding the Fourth Proportional to 633,901.71, 874,744.70 and 347,401.47

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Solution

The fourth proportional to 633,901.71, 874,744.70 and 347,401.47 is: 479,392.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,901.71 : 874,744.70 = 347,401.47 : x
  2. Step 2: Convert to fraction form
    633,901.71/874,744.70 = 347,401.47/x
  3. Step 3: Cross multiply
    633,901.71x = 874,744.70 × 347,401.47
  4. Step 4: Simplify right side
    633,901.71x = 303,887,594,654.71
  5. Step 5: Solve for x
    x = 303,887,594,654.71/633,901.71
  6. Step 6: Final answer
    x = 479,392.29

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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.