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Finding the Fourth Proportional to 456,011.83, 629,231.99 and 259,783.46

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Solution

The fourth proportional to 456,011.83, 629,231.99 and 259,783.46 is: 358,464.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,011.83 : 629,231.99 = 259,783.46 : x
  2. Step 2: Convert to fraction form
    456,011.83/629,231.99 = 259,783.46/x
  3. Step 3: Cross multiply
    456,011.83x = 629,231.99 × 259,783.46
  4. Step 4: Simplify right side
    456,011.83x = 163,464,063,504.89
  5. Step 5: Solve for x
    x = 163,464,063,504.89/456,011.83
  6. Step 6: Final answer
    x = 358,464.52

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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.