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Finding the Fourth Proportional to 352,466.40, 486,390.48 and 191,317.98

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Solution

The fourth proportional to 352,466.40, 486,390.48 and 191,317.98 is: 264,011.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,466.40 : 486,390.48 = 191,317.98 : x
  2. Step 2: Convert to fraction form
    352,466.40/486,390.48 = 191,317.98/x
  3. Step 3: Cross multiply
    352,466.40x = 486,390.48 × 191,317.98
  4. Step 4: Simplify right side
    352,466.40x = 93,055,244,124.83
  5. Step 5: Solve for x
    x = 93,055,244,124.83/352,466.40
  6. Step 6: Final answer
    x = 264,011.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.