Home / 669,052.45-922,872.40-396,927.69

Finding the Fourth Proportional to 669,052.45, 922,872.40 and 396,927.69

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Solution

The fourth proportional to 669,052.45, 922,872.40 and 396,927.69 is: 547,511.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,052.45 : 922,872.40 = 396,927.69 : x
  2. Step 2: Convert to fraction form
    669,052.45/922,872.40 = 396,927.69/x
  3. Step 3: Cross multiply
    669,052.45x = 922,872.40 × 396,927.69
  4. Step 4: Simplify right side
    669,052.45x = 366,313,609,896.76
  5. Step 5: Solve for x
    x = 366,313,609,896.76/669,052.45
  6. Step 6: Final answer
    x = 547,511.05

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Double scale
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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.