Home / 1,328,575.27-1,993,179.26-430,017.16

Finding the Fourth Proportional to 1,328,575.27, 1,993,179.26 and 430,017.16

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Solution

The fourth proportional to 1,328,575.27, 1,993,179.26 and 430,017.16 is: 645,128.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,575.27 : 1,993,179.26 = 430,017.16 : x
  2. Step 2: Convert to fraction form
    1,328,575.27/1,993,179.26 = 430,017.16/x
  3. Step 3: Cross multiply
    1,328,575.27x = 1,993,179.26 × 430,017.16
  4. Step 4: Simplify right side
    1,328,575.27x = 857,101,284,756.10
  5. Step 5: Solve for x
    x = 857,101,284,756.10/1,328,575.27
  6. Step 6: Final answer
    x = 645,128.13

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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.