Home / 1,091,408.10-1,637,112.15-343,454.10

Finding the Fourth Proportional to 1,091,408.10, 1,637,112.15 and 343,454.10

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Solution

The fourth proportional to 1,091,408.10, 1,637,112.15 and 343,454.10 is: 515,181.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,408.10 : 1,637,112.15 = 343,454.10 : x
  2. Step 2: Convert to fraction form
    1,091,408.10/1,637,112.15 = 343,454.10/x
  3. Step 3: Cross multiply
    1,091,408.10x = 1,637,112.15 × 343,454.10
  4. Step 4: Simplify right side
    1,091,408.10x = 562,272,880,077.32
  5. Step 5: Solve for x
    x = 562,272,880,077.32/1,091,408.10
  6. Step 6: Final answer
    x = 515,181.15

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.