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Finding the Fourth Proportional to 568,458.81, 784,452.60 and 313,804.53

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Solution

The fourth proportional to 568,458.81, 784,452.60 and 313,804.53 is: 433,038.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,458.81 : 784,452.60 = 313,804.53 : x
  2. Step 2: Convert to fraction form
    568,458.81/784,452.60 = 313,804.53/x
  3. Step 3: Cross multiply
    568,458.81x = 784,452.60 × 313,804.53
  4. Step 4: Simplify right side
    568,458.81x = 246,164,779,450.28
  5. Step 5: Solve for x
    x = 246,164,779,450.28/568,458.81
  6. Step 6: Final answer
    x = 433,038.90

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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.