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Finding the Fourth Proportional to 418,111.94, 624,008.27 and 377,755.71

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Solution

The fourth proportional to 418,111.94, 624,008.27 and 377,755.71 is: 563,778.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,111.94 : 624,008.27 = 377,755.71 : x
  2. Step 2: Convert to fraction form
    418,111.94/624,008.27 = 377,755.71/x
  3. Step 3: Cross multiply
    418,111.94x = 624,008.27 × 377,755.71
  4. Step 4: Simplify right side
    418,111.94x = 235,722,685,190.94
  5. Step 5: Solve for x
    x = 235,722,685,190.94/418,111.94
  6. Step 6: Final answer
    x = 563,778.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.