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Finding the Fourth Proportional to 617,653.72, 926,555.33 and 218,212.76

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Solution

The fourth proportional to 617,653.72, 926,555.33 and 218,212.76 is: 327,345.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,653.72 : 926,555.33 = 218,212.76 : x
  2. Step 2: Convert to fraction form
    617,653.72/926,555.33 = 218,212.76/x
  3. Step 3: Cross multiply
    617,653.72x = 926,555.33 × 218,212.76
  4. Step 4: Simplify right side
    617,653.72x = 202,186,195,852.01
  5. Step 5: Solve for x
    x = 202,186,195,852.01/617,653.72
  6. Step 6: Final answer
    x = 327,345.55

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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.