Home / 1,328,811.66-1,993,535.01-430,254.41

Finding the Fourth Proportional to 1,328,811.66, 1,993,535.01 and 430,254.41

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Solution

The fourth proportional to 1,328,811.66, 1,993,535.01 and 430,254.41 is: 645,484.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,811.66 : 1,993,535.01 = 430,254.41 : x
  2. Step 2: Convert to fraction form
    1,328,811.66/1,993,535.01 = 430,254.41/x
  3. Step 3: Cross multiply
    1,328,811.66x = 1,993,535.01 × 430,254.41
  4. Step 4: Simplify right side
    1,328,811.66x = 857,727,219,574.22
  5. Step 5: Solve for x
    x = 857,727,219,574.22/1,328,811.66
  6. Step 6: Final answer
    x = 645,484.42

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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.