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Finding the Fourth Proportional to 570,140.76, 854,958.42 and 303,851.64

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Solution

The fourth proportional to 570,140.76, 854,958.42 and 303,851.64 is: 455,642.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,140.76 : 854,958.42 = 303,851.64 : x
  2. Step 2: Convert to fraction form
    570,140.76/854,958.42 = 303,851.64/x
  3. Step 3: Cross multiply
    570,140.76x = 854,958.42 × 303,851.64
  4. Step 4: Simplify right side
    570,140.76x = 259,780,518,048.81
  5. Step 5: Solve for x
    x = 259,780,518,048.81/570,140.76
  6. Step 6: Final answer
    x = 455,642.78

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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.