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Finding the Fourth Proportional to 318,033.70, 438,890.34 and 174,792.76

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Solution

The fourth proportional to 318,033.70, 438,890.34 and 174,792.76 is: 241,216.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,033.70 : 438,890.34 = 174,792.76 : x
  2. Step 2: Convert to fraction form
    318,033.70/438,890.34 = 174,792.76/x
  3. Step 3: Cross multiply
    318,033.70x = 438,890.34 × 174,792.76
  4. Step 4: Simplify right side
    318,033.70x = 76,714,853,865.94
  5. Step 5: Solve for x
    x = 76,714,853,865.94/318,033.70
  6. Step 6: Final answer
    x = 241,216.12

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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.