Home / 1,138,161.02-1,570,659-628,859.75

Finding the Fourth Proportional to 1,138,161.02, 1,570,659 and 628,859.75

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Solution

The fourth proportional to 1,138,161.02, 1,570,659 and 628,859.75 is: 867,824.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,161.02 : 1,570,659 = 628,859.75 : x
  2. Step 2: Convert to fraction form
    1,138,161.02/1,570,659 = 628,859.75/x
  3. Step 3: Cross multiply
    1,138,161.02x = 1,570,659 × 628,859.75
  4. Step 4: Simplify right side
    1,138,161.02x = 987,724,226,075.25
  5. Step 5: Solve for x
    x = 987,724,226,075.25/1,138,161.02
  6. Step 6: Final answer
    x = 867,824.68

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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.