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Finding the Fourth Proportional to 314,616.65, 471,742.72 and 214,897.34

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Solution

The fourth proportional to 314,616.65, 471,742.72 and 214,897.34 is: 322,221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,616.65 : 471,742.72 = 214,897.34 : x
  2. Step 2: Convert to fraction form
    314,616.65/471,742.72 = 214,897.34/x
  3. Step 3: Cross multiply
    314,616.65x = 471,742.72 × 214,897.34
  4. Step 4: Simplify right side
    314,616.65x = 101,376,256,334.48
  5. Step 5: Solve for x
    x = 101,376,256,334.48/314,616.65
  6. Step 6: Final answer
    x = 322,221.53

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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.