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Finding the Fourth Proportional to 419,653.32, 579,114.10 and 228,668.36

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Solution

The fourth proportional to 419,653.32, 579,114.10 and 228,668.36 is: 315,558.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,653.32 : 579,114.10 = 228,668.36 : x
  2. Step 2: Convert to fraction form
    419,653.32/579,114.10 = 228,668.36/x
  3. Step 3: Cross multiply
    419,653.32x = 579,114.10 × 228,668.36
  4. Step 4: Simplify right side
    419,653.32x = 132,425,071,499.88
  5. Step 5: Solve for x
    x = 132,425,071,499.88/419,653.32
  6. Step 6: Final answer
    x = 315,558.26

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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.