Home / 1,028,481-1,418,832.77-666,021.60

Finding the Fourth Proportional to 1,028,481, 1,418,832.77 and 666,021.60

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Solution

The fourth proportional to 1,028,481, 1,418,832.77 and 666,021.60 is: 918,804.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,481 : 1,418,832.77 = 666,021.60 : x
  2. Step 2: Convert to fraction form
    1,028,481/1,418,832.77 = 666,021.60/x
  3. Step 3: Cross multiply
    1,028,481x = 1,418,832.77 × 666,021.60
  4. Step 4: Simplify right side
    1,028,481x = 944,973,268,277.72
  5. Step 5: Solve for x
    x = 944,973,268,277.72/1,028,481
  6. Step 6: Final answer
    x = 918,804.79

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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.