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Finding the Fourth Proportional to 384,554.78, 530,235.47 and 262,119.65

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Solution

The fourth proportional to 384,554.78, 530,235.47 and 262,119.65 is: 361,418.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,554.78 : 530,235.47 = 262,119.65 : x
  2. Step 2: Convert to fraction form
    384,554.78/530,235.47 = 262,119.65/x
  3. Step 3: Cross multiply
    384,554.78x = 530,235.47 × 262,119.65
  4. Step 4: Simplify right side
    384,554.78x = 138,985,137,794.87
  5. Step 5: Solve for x
    x = 138,985,137,794.87/384,554.78
  6. Step 6: Final answer
    x = 361,418.31

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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.