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Finding the Fourth Proportional to 568,453.20, 784,461.60 and 313,804.32

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Solution

The fourth proportional to 568,453.20, 784,461.60 and 313,804.32 is: 433,047.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,453.20 : 784,461.60 = 313,804.32 : x
  2. Step 2: Convert to fraction form
    568,453.20/784,461.60 = 313,804.32/x
  3. Step 3: Cross multiply
    568,453.20x = 784,461.60 × 313,804.32
  4. Step 4: Simplify right side
    568,453.20x = 246,167,438,954.11
  5. Step 5: Solve for x
    x = 246,167,438,954.11/568,453.20
  6. Step 6: Final answer
    x = 433,047.86

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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.