Home / 772,237.37-1,065,644.02-449,999.93

Finding the Fourth Proportional to 772,237.37, 1,065,644.02 and 449,999.93

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Solution

The fourth proportional to 772,237.37, 1,065,644.02 and 449,999.93 is: 620,974.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,237.37 : 1,065,644.02 = 449,999.93 : x
  2. Step 2: Convert to fraction form
    772,237.37/1,065,644.02 = 449,999.93/x
  3. Step 3: Cross multiply
    772,237.37x = 1,065,644.02 × 449,999.93
  4. Step 4: Simplify right side
    772,237.37x = 479,539,734,404.92
  5. Step 5: Solve for x
    x = 479,539,734,404.92/772,237.37
  6. Step 6: Final answer
    x = 620,974.53

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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.