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Finding the Fourth Proportional to 590,421.60, 886,069.80 and 235,690.20

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Solution

The fourth proportional to 590,421.60, 886,069.80 and 235,690.20 is: 353,709.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,421.60 : 886,069.80 = 235,690.20 : x
  2. Step 2: Convert to fraction form
    590,421.60/886,069.80 = 235,690.20/x
  3. Step 3: Cross multiply
    590,421.60x = 886,069.80 × 235,690.20
  4. Step 4: Simplify right side
    590,421.60x = 208,837,968,375.96
  5. Step 5: Solve for x
    x = 208,837,968,375.96/590,421.60
  6. Step 6: Final answer
    x = 353,709.91

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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.