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Finding the Fourth Proportional to 561,661.70, 775,147.38 and 332,292.72

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Solution

The fourth proportional to 561,661.70, 775,147.38 and 332,292.72 is: 458,596.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,661.70 : 775,147.38 = 332,292.72 : x
  2. Step 2: Convert to fraction form
    561,661.70/775,147.38 = 332,292.72/x
  3. Step 3: Cross multiply
    561,661.70x = 775,147.38 × 332,292.72
  4. Step 4: Simplify right side
    561,661.70x = 257,575,833,701.78
  5. Step 5: Solve for x
    x = 257,575,833,701.78/561,661.70
  6. Step 6: Final answer
    x = 458,596.05

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Double scale
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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.