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Finding the Fourth Proportional to 417,779.85, 576,609.83 and 236,502.09

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Solution

The fourth proportional to 417,779.85, 576,609.83 and 236,502.09 is: 326,414.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,779.85 : 576,609.83 = 236,502.09 : x
  2. Step 2: Convert to fraction form
    417,779.85/576,609.83 = 236,502.09/x
  3. Step 3: Cross multiply
    417,779.85x = 576,609.83 × 236,502.09
  4. Step 4: Simplify right side
    417,779.85x = 136,369,428,727.03
  5. Step 5: Solve for x
    x = 136,369,428,727.03/417,779.85
  6. Step 6: Final answer
    x = 326,414.57

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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.