Home / 1,091,388.51-1,637,071.25-426,534.75

Finding the Fourth Proportional to 1,091,388.51, 1,637,071.25 and 426,534.75

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Solution

The fourth proportional to 1,091,388.51, 1,637,071.25 and 426,534.75 is: 639,797.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,388.51 : 1,637,071.25 = 426,534.75 : x
  2. Step 2: Convert to fraction form
    1,091,388.51/1,637,071.25 = 426,534.75/x
  3. Step 3: Cross multiply
    1,091,388.51x = 1,637,071.25 × 426,534.75
  4. Step 4: Simplify right side
    1,091,388.51x = 698,267,774,218.26
  5. Step 5: Solve for x
    x = 698,267,774,218.26/1,091,388.51
  6. Step 6: Final answer
    x = 639,797.62

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Double scale
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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.