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Finding the Fourth Proportional to 554,010.41, 764,488.41 and 312,352.37

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Solution

The fourth proportional to 554,010.41, 764,488.41 and 312,352.37 is: 431,020.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,010.41 : 764,488.41 = 312,352.37 : x
  2. Step 2: Convert to fraction form
    554,010.41/764,488.41 = 312,352.37/x
  3. Step 3: Cross multiply
    554,010.41x = 764,488.41 × 312,352.37
  4. Step 4: Simplify right side
    554,010.41x = 238,789,762,878.59
  5. Step 5: Solve for x
    x = 238,789,762,878.59/554,010.41
  6. Step 6: Final answer
    x = 431,020.36

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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.