Home / 1,091,403.60-1,637,105.40-343,449.60

Finding the Fourth Proportional to 1,091,403.60, 1,637,105.40 and 343,449.60

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Solution

The fourth proportional to 1,091,403.60, 1,637,105.40 and 343,449.60 is: 515,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,403.60 : 1,637,105.40 = 343,449.60 : x
  2. Step 2: Convert to fraction form
    1,091,403.60/1,637,105.40 = 343,449.60/x
  3. Step 3: Cross multiply
    1,091,403.60x = 1,637,105.40 × 343,449.60
  4. Step 4: Simplify right side
    1,091,403.60x = 562,263,194,787.84
  5. Step 5: Solve for x
    x = 562,263,194,787.84/1,091,403.60
  6. Step 6: Final answer
    x = 515,174.40

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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.