Home / 1,328,573.64-1,993,176.82-430,015.53

Finding the Fourth Proportional to 1,328,573.64, 1,993,176.82 and 430,015.53

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Solution

The fourth proportional to 1,328,573.64, 1,993,176.82 and 430,015.53 is: 645,125.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,573.64 : 1,993,176.82 = 430,015.53 : x
  2. Step 2: Convert to fraction form
    1,328,573.64/1,993,176.82 = 430,015.53/x
  3. Step 3: Cross multiply
    1,328,573.64x = 1,993,176.82 × 430,015.53
  4. Step 4: Simplify right side
    1,328,573.64x = 857,096,994,647.95
  5. Step 5: Solve for x
    x = 857,096,994,647.95/1,328,573.64
  6. Step 6: Final answer
    x = 645,125.69

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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.