Home / 1,272,458.54-1,908,637.94-431,010.26

Finding the Fourth Proportional to 1,272,458.54, 1,908,637.94 and 431,010.26

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Solution

The fourth proportional to 1,272,458.54, 1,908,637.94 and 431,010.26 is: 646,498.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,458.54 : 1,908,637.94 = 431,010.26 : x
  2. Step 2: Convert to fraction form
    1,272,458.54/1,908,637.94 = 431,010.26/x
  3. Step 3: Cross multiply
    1,272,458.54x = 1,908,637.94 × 431,010.26
  4. Step 4: Simplify right side
    1,272,458.54x = 822,642,534,765.26
  5. Step 5: Solve for x
    x = 822,642,534,765.26/1,272,458.54
  6. Step 6: Final answer
    x = 646,498.50

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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.