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Finding the Fourth Proportional to 1,738,374.80, 2,602,313.40 and 1,528,422.80

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Solution

The fourth proportional to 1,738,374.80, 2,602,313.40 and 1,528,422.80 is: 2,288,019.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738,374.80 : 2,602,313.40 = 1,528,422.80 : x
  2. Step 2: Convert to fraction form
    1,738,374.80/2,602,313.40 = 1,528,422.80/x
  3. Step 3: Cross multiply
    1,738,374.80x = 2,602,313.40 × 1,528,422.80
  4. Step 4: Simplify right side
    1,738,374.80x = 3,977,435,133,305.52
  5. Step 5: Solve for x
    x = 3,977,435,133,305.52/1,738,374.80
  6. Step 6: Final answer
    x = 2,288,019.32

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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.