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Finding the Fourth Proportional to 383,017.67, 528,544.13 and 219,665.74

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Solution

The fourth proportional to 383,017.67, 528,544.13 and 219,665.74 is: 303,127.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,017.67 : 528,544.13 = 219,665.74 : x
  2. Step 2: Convert to fraction form
    383,017.67/528,544.13 = 219,665.74/x
  3. Step 3: Cross multiply
    383,017.67x = 528,544.13 × 219,665.74
  4. Step 4: Simplify right side
    383,017.67x = 116,103,037,439.11
  5. Step 5: Solve for x
    x = 116,103,037,439.11/383,017.67
  6. Step 6: Final answer
    x = 303,127.10

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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.