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Finding the Fourth Proportional to 572,793.22, 859,300.47 and 217,779.64

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Solution

The fourth proportional to 572,793.22, 859,300.47 and 217,779.64 is: 326,711.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,793.22 : 859,300.47 = 217,779.64 : x
  2. Step 2: Convert to fraction form
    572,793.22/859,300.47 = 217,779.64/x
  3. Step 3: Cross multiply
    572,793.22x = 859,300.47 × 217,779.64
  4. Step 4: Simplify right side
    572,793.22x = 187,138,144,258.75
  5. Step 5: Solve for x
    x = 187,138,144,258.75/572,793.22
  6. Step 6: Final answer
    x = 326,711.52

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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.