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Finding the Fourth Proportional to 418,143.76, 624,055.72 and 377,787.56

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Solution

The fourth proportional to 418,143.76, 624,055.72 and 377,787.56 is: 563,826.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,143.76 : 624,055.72 = 377,787.56 : x
  2. Step 2: Convert to fraction form
    418,143.76/624,055.72 = 377,787.56/x
  3. Step 3: Cross multiply
    418,143.76x = 624,055.72 × 377,787.56
  4. Step 4: Simplify right side
    418,143.76x = 235,760,487,762.84
  5. Step 5: Solve for x
    x = 235,760,487,762.84/418,143.76
  6. Step 6: Final answer
    x = 563,826.39

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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.