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Finding the Fourth Proportional to 339,355.72, 468,314.74 and 186,397.51

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Solution

The fourth proportional to 339,355.72, 468,314.74 and 186,397.51 is: 257,230.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,355.72 : 468,314.74 = 186,397.51 : x
  2. Step 2: Convert to fraction form
    339,355.72/468,314.74 = 186,397.51/x
  3. Step 3: Cross multiply
    339,355.72x = 468,314.74 × 186,397.51
  4. Step 4: Simplify right side
    339,355.72x = 87,292,699,795.52
  5. Step 5: Solve for x
    x = 87,292,699,795.52/339,355.72
  6. Step 6: Final answer
    x = 257,230.67

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1.5x scale

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.