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Finding the Fourth Proportional to 375,779.42, 518,575.05 and 206,024.42

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Solution

The fourth proportional to 375,779.42, 518,575.05 and 206,024.42 is: 284,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,779.42 : 518,575.05 = 206,024.42 : x
  2. Step 2: Convert to fraction form
    375,779.42/518,575.05 = 206,024.42/x
  3. Step 3: Cross multiply
    375,779.42x = 518,575.05 × 206,024.42
  4. Step 4: Simplify right side
    375,779.42x = 106,839,123,902.72
  5. Step 5: Solve for x
    x = 106,839,123,902.72/375,779.42
  6. Step 6: Final answer
    x = 284,313.40

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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.