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Finding the Fourth Proportional to 383,562.74, 529,323.54 and 213,778.64

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Solution

The fourth proportional to 383,562.74, 529,323.54 and 213,778.64 is: 295,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,562.74 : 529,323.54 = 213,778.64 : x
  2. Step 2: Convert to fraction form
    383,562.74/529,323.54 = 213,778.64/x
  3. Step 3: Cross multiply
    383,562.74x = 529,323.54 × 213,778.64
  4. Step 4: Simplify right side
    383,562.74x = 113,158,066,501.19
  5. Step 5: Solve for x
    x = 113,158,066,501.19/383,562.74
  6. Step 6: Final answer
    x = 295,018.40

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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.