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Finding the Fourth Proportional to 264,931.80, 397,448.90 and 133,603.80

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Solution

The fourth proportional to 264,931.80, 397,448.90 and 133,603.80 is: 200,431.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,931.80 : 397,448.90 = 133,603.80 : x
  2. Step 2: Convert to fraction form
    264,931.80/397,448.90 = 133,603.80/x
  3. Step 3: Cross multiply
    264,931.80x = 397,448.90 × 133,603.80
  4. Step 4: Simplify right side
    264,931.80x = 53,100,683,345.82
  5. Step 5: Solve for x
    x = 53,100,683,345.82/264,931.80
  6. Step 6: Final answer
    x = 200,431.52

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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.