Home / 1,328,957.57-1,993,631.97-430,100.57

Finding the Fourth Proportional to 1,328,957.57, 1,993,631.97 and 430,100.57

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Solution

The fourth proportional to 1,328,957.57, 1,993,631.97 and 430,100.57 is: 645,214.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,957.57 : 1,993,631.97 = 430,100.57 : x
  2. Step 2: Convert to fraction form
    1,328,957.57/1,993,631.97 = 430,100.57/x
  3. Step 3: Cross multiply
    1,328,957.57x = 1,993,631.97 × 430,100.57
  4. Step 4: Simplify right side
    1,328,957.57x = 857,462,236,699.06
  5. Step 5: Solve for x
    x = 857,462,236,699.06/1,328,957.57
  6. Step 6: Final answer
    x = 645,214.16

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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.