Home / 876,111.12-1,314,308.64-343,343.28

Finding the Fourth Proportional to 876,111.12, 1,314,308.64 and 343,343.28

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Solution

The fourth proportional to 876,111.12, 1,314,308.64 and 343,343.28 is: 515,070.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,111.12 : 1,314,308.64 = 343,343.28 : x
  2. Step 2: Convert to fraction form
    876,111.12/1,314,308.64 = 343,343.28/x
  3. Step 3: Cross multiply
    876,111.12x = 1,314,308.64 × 343,343.28
  4. Step 4: Simplify right side
    876,111.12x = 451,259,039,389.94
  5. Step 5: Solve for x
    x = 451,259,039,389.94/876,111.12
  6. Step 6: Final answer
    x = 515,070.55

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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.