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Finding the Fourth Proportional to 677,880.46, 935,470.11 and 376,074.46

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Solution

The fourth proportional to 677,880.46, 935,470.11 and 376,074.46 is: 518,980.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,880.46 : 935,470.11 = 376,074.46 : x
  2. Step 2: Convert to fraction form
    677,880.46/935,470.11 = 376,074.46/x
  3. Step 3: Cross multiply
    677,880.46x = 935,470.11 × 376,074.46
  4. Step 4: Simplify right side
    677,880.46x = 351,806,416,464.39
  5. Step 5: Solve for x
    x = 351,806,416,464.39/677,880.46
  6. Step 6: Final answer
    x = 518,980.02

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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.