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Finding the Fourth Proportional to 437,205.48, 655,255.26 and 212,617.32

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Solution

The fourth proportional to 437,205.48, 655,255.26 and 212,617.32 is: 318,657.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,205.48 : 655,255.26 = 212,617.32 : x
  2. Step 2: Convert to fraction form
    437,205.48/655,255.26 = 212,617.32/x
  3. Step 3: Cross multiply
    437,205.48x = 655,255.26 × 212,617.32
  4. Step 4: Simplify right side
    437,205.48x = 139,318,617,297.10
  5. Step 5: Solve for x
    x = 139,318,617,297.10/437,205.48
  6. Step 6: Final answer
    x = 318,657.07

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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.