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Finding the Fourth Proportional to 424,846.26, 637,117.55 and 140,484.32

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Solution

The fourth proportional to 424,846.26, 637,117.55 and 140,484.32 is: 210,676.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,846.26 : 637,117.55 = 140,484.32 : x
  2. Step 2: Convert to fraction form
    424,846.26/637,117.55 = 140,484.32/x
  3. Step 3: Cross multiply
    424,846.26x = 637,117.55 × 140,484.32
  4. Step 4: Simplify right side
    424,846.26x = 89,505,021,883.81
  5. Step 5: Solve for x
    x = 89,505,021,883.81/424,846.26
  6. Step 6: Final answer
    x = 210,676.26

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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.