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Finding the Fourth Proportional to 535,783.50, 803,514.84 and 215,832.69

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Solution

The fourth proportional to 535,783.50, 803,514.84 and 215,832.69 is: 323,684.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,783.50 : 803,514.84 = 215,832.69 : x
  2. Step 2: Convert to fraction form
    535,783.50/803,514.84 = 215,832.69/x
  3. Step 3: Cross multiply
    535,783.50x = 803,514.84 × 215,832.69
  4. Step 4: Simplify right side
    535,783.50x = 173,424,769,372.12
  5. Step 5: Solve for x
    x = 173,424,769,372.12/535,783.50
  6. Step 6: Final answer
    x = 323,684.42

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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.