Home / 638,456.04-957,684.06-217,735.56

Finding the Fourth Proportional to 638,456.04, 957,684.06 and 217,735.56

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Solution

The fourth proportional to 638,456.04, 957,684.06 and 217,735.56 is: 326,603.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,456.04 : 957,684.06 = 217,735.56 : x
  2. Step 2: Convert to fraction form
    638,456.04/957,684.06 = 217,735.56/x
  3. Step 3: Cross multiply
    638,456.04x = 957,684.06 × 217,735.56
  4. Step 4: Simplify right side
    638,456.04x = 208,521,875,107.17
  5. Step 5: Solve for x
    x = 208,521,875,107.17/638,456.04
  6. Step 6: Final answer
    x = 326,603.34

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Double scale
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Similar ratio
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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.