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Finding the Fourth Proportional to 541,185.77, 746,915.57 and 311,698.92

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Solution

The fourth proportional to 541,185.77, 746,915.57 and 311,698.92 is: 430,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,185.77 : 746,915.57 = 311,698.92 : x
  2. Step 2: Convert to fraction form
    541,185.77/746,915.57 = 311,698.92/x
  3. Step 3: Cross multiply
    541,185.77x = 746,915.57 × 311,698.92
  4. Step 4: Simplify right side
    541,185.77x = 232,812,776,500.18
  5. Step 5: Solve for x
    x = 232,812,776,500.18/541,185.77
  6. Step 6: Final answer
    x = 430,190.13

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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.