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Finding the Fourth Proportional to 669,052.70, 922,872.75 and 396,927.94

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Solution

The fourth proportional to 669,052.70, 922,872.75 and 396,927.94 is: 547,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,052.70 : 922,872.75 = 396,927.94 : x
  2. Step 2: Convert to fraction form
    669,052.70/922,872.75 = 396,927.94/x
  3. Step 3: Cross multiply
    669,052.70x = 922,872.75 × 396,927.94
  4. Step 4: Simplify right side
    669,052.70x = 366,313,977,555.00
  5. Step 5: Solve for x
    x = 366,313,977,555.00/669,052.70
  6. Step 6: Final answer
    x = 547,511.40

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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.