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Finding the Fourth Proportional to 319,157.01, 440,404.90 and 190,069.94

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Solution

The fourth proportional to 319,157.01, 440,404.90 and 190,069.94 is: 262,277.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,157.01 : 440,404.90 = 190,069.94 : x
  2. Step 2: Convert to fraction form
    319,157.01/440,404.90 = 190,069.94/x
  3. Step 3: Cross multiply
    319,157.01x = 440,404.90 × 190,069.94
  4. Step 4: Simplify right side
    319,157.01x = 83,707,733,544.54
  5. Step 5: Solve for x
    x = 83,707,733,544.54/319,157.01
  6. Step 6: Final answer
    x = 262,277.60

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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.