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Finding the Fourth Proportional to 357,636.85, 493,333.53 and 223,267.57

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Solution

The fourth proportional to 357,636.85, 493,333.53 and 223,267.57 is: 307,981.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,636.85 : 493,333.53 = 223,267.57 : x
  2. Step 2: Convert to fraction form
    357,636.85/493,333.53 = 223,267.57/x
  3. Step 3: Cross multiply
    357,636.85x = 493,333.53 × 223,267.57
  4. Step 4: Simplify right side
    357,636.85x = 110,145,378,442.62
  5. Step 5: Solve for x
    x = 110,145,378,442.62/357,636.85
  6. Step 6: Final answer
    x = 307,981.07

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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.