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Finding the Fourth Proportional to 637,670.76, 956,010.36 and 412,555.56

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Solution

The fourth proportional to 637,670.76, 956,010.36 and 412,555.56 is: 618,512.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,670.76 : 956,010.36 = 412,555.56 : x
  2. Step 2: Convert to fraction form
    637,670.76/956,010.36 = 412,555.56/x
  3. Step 3: Cross multiply
    637,670.76x = 956,010.36 × 412,555.56
  4. Step 4: Simplify right side
    637,670.76x = 394,407,389,435.60
  5. Step 5: Solve for x
    x = 394,407,389,435.60/637,670.76
  6. Step 6: Final answer
    x = 618,512.58

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1.5x scale

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.