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Finding the Fourth Proportional to 922,676.40, 1,384,014.60 and 424,040.40

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Solution

The fourth proportional to 922,676.40, 1,384,014.60 and 424,040.40 is: 636,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,676.40 : 1,384,014.60 = 424,040.40 : x
  2. Step 2: Convert to fraction form
    922,676.40/1,384,014.60 = 424,040.40/x
  3. Step 3: Cross multiply
    922,676.40x = 1,384,014.60 × 424,040.40
  4. Step 4: Simplify right side
    922,676.40x = 586,878,104,589.84
  5. Step 5: Solve for x
    x = 586,878,104,589.84/922,676.40
  6. Step 6: Final answer
    x = 636,060.60

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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.