Home / 1,291,975.25-1,937,980.16-405,511.25

Finding the Fourth Proportional to 1,291,975.25, 1,937,980.16 and 405,511.25

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Solution

The fourth proportional to 1,291,975.25, 1,937,980.16 and 405,511.25 is: 608,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,975.25 : 1,937,980.16 = 405,511.25 : x
  2. Step 2: Convert to fraction form
    1,291,975.25/1,937,980.16 = 405,511.25/x
  3. Step 3: Cross multiply
    1,291,975.25x = 1,937,980.16 × 405,511.25
  4. Step 4: Simplify right side
    1,291,975.25x = 785,872,755,129.24
  5. Step 5: Solve for x
    x = 785,872,755,129.24/1,291,975.25
  6. Step 6: Final answer
    x = 608,272.30

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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.