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Finding the Fourth Proportional to 541,590.62, 812,383.50 and 221,890.70

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Solution

The fourth proportional to 541,590.62, 812,383.50 and 221,890.70 is: 332,835.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,590.62 : 812,383.50 = 221,890.70 : x
  2. Step 2: Convert to fraction form
    541,590.62/812,383.50 = 221,890.70/x
  3. Step 3: Cross multiply
    541,590.62x = 812,383.50 × 221,890.70
  4. Step 4: Simplify right side
    541,590.62x = 180,260,343,483.45
  5. Step 5: Solve for x
    x = 180,260,343,483.45/541,590.62
  6. Step 6: Final answer
    x = 332,835.05

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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.