Home / 345,459.09-476,727.15-188,296.36

Finding the Fourth Proportional to 345,459.09, 476,727.15 and 188,296.36

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Solution

The fourth proportional to 345,459.09, 476,727.15 and 188,296.36 is: 259,845.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,459.09 : 476,727.15 = 188,296.36 : x
  2. Step 2: Convert to fraction form
    345,459.09/476,727.15 = 188,296.36/x
  3. Step 3: Cross multiply
    345,459.09x = 476,727.15 × 188,296.36
  4. Step 4: Simplify right side
    345,459.09x = 89,765,989,254.06
  5. Step 5: Solve for x
    x = 89,765,989,254.06/345,459.09
  6. Step 6: Final answer
    x = 259,845.50

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1.5x scale

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.