Home / 1,328,832.08-1,993,538.81-430,364.64

Finding the Fourth Proportional to 1,328,832.08, 1,993,538.81 and 430,364.64

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Solution

The fourth proportional to 1,328,832.08, 1,993,538.81 and 430,364.64 is: 645,641.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,832.08 : 1,993,538.81 = 430,364.64 : x
  2. Step 2: Convert to fraction form
    1,328,832.08/1,993,538.81 = 430,364.64/x
  3. Step 3: Cross multiply
    1,328,832.08x = 1,993,538.81 × 430,364.64
  4. Step 4: Simplify right side
    1,328,832.08x = 857,948,605,353.34
  5. Step 5: Solve for x
    x = 857,948,605,353.34/1,328,832.08
  6. Step 6: Final answer
    x = 645,641.10

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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.