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Finding the Fourth Proportional to 619,269.74, 928,681.74 and 214,351.93

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Solution

The fourth proportional to 619,269.74, 928,681.74 and 214,351.93 is: 321,450.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,269.74 : 928,681.74 = 214,351.93 : x
  2. Step 2: Convert to fraction form
    619,269.74/928,681.74 = 214,351.93/x
  3. Step 3: Cross multiply
    619,269.74x = 928,681.74 × 214,351.93
  4. Step 4: Simplify right side
    619,269.74x = 199,064,718,681.35
  5. Step 5: Solve for x
    x = 199,064,718,681.35/619,269.74
  6. Step 6: Final answer
    x = 321,450.75

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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.