Home / 638,324.33-957,705.21-217,895.45

Finding the Fourth Proportional to 638,324.33, 957,705.21 and 217,895.45

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Solution

The fourth proportional to 638,324.33, 957,705.21 and 217,895.45 is: 326,917.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,324.33 : 957,705.21 = 217,895.45 : x
  2. Step 2: Convert to fraction form
    638,324.33/957,705.21 = 217,895.45/x
  3. Step 3: Cross multiply
    638,324.33x = 957,705.21 × 217,895.45
  4. Step 4: Simplify right side
    638,324.33x = 208,679,602,911.77
  5. Step 5: Solve for x
    x = 208,679,602,911.77/638,324.33
  6. Step 6: Final answer
    x = 326,917.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.