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Finding the Fourth Proportional to 617,279.36, 925,921.38 and 217,703.12

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Solution

The fourth proportional to 617,279.36, 925,921.38 and 217,703.12 is: 326,555.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,279.36 : 925,921.38 = 217,703.12 : x
  2. Step 2: Convert to fraction form
    617,279.36/925,921.38 = 217,703.12/x
  3. Step 3: Cross multiply
    617,279.36x = 925,921.38 × 217,703.12
  4. Step 4: Simplify right side
    617,279.36x = 201,575,973,300.71
  5. Step 5: Solve for x
    x = 201,575,973,300.71/617,279.36
  6. Step 6: Final answer
    x = 326,555.51

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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.