Home / 1,175,081.25-1,621,622.39-638,537.25

Finding the Fourth Proportional to 1,175,081.25, 1,621,622.39 and 638,537.25

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Solution

The fourth proportional to 1,175,081.25, 1,621,622.39 and 638,537.25 is: 881,186.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,081.25 : 1,621,622.39 = 638,537.25 : x
  2. Step 2: Convert to fraction form
    1,175,081.25/1,621,622.39 = 638,537.25/x
  3. Step 3: Cross multiply
    1,175,081.25x = 1,621,622.39 × 638,537.25
  4. Step 4: Simplify right side
    1,175,081.25x = 1,035,466,298,256.34
  5. Step 5: Solve for x
    x = 1,035,466,298,256.34/1,175,081.25
  6. Step 6: Final answer
    x = 881,186.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.