Home / 1,203,153.75-1,660,352.18-666,609.75

Finding the Fourth Proportional to 1,203,153.75, 1,660,352.18 and 666,609.75

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Solution

The fourth proportional to 1,203,153.75, 1,660,352.18 and 666,609.75 is: 919,921.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,153.75 : 1,660,352.18 = 666,609.75 : x
  2. Step 2: Convert to fraction form
    1,203,153.75/1,660,352.18 = 666,609.75/x
  3. Step 3: Cross multiply
    1,203,153.75x = 1,660,352.18 × 666,609.75
  4. Step 4: Simplify right side
    1,203,153.75x = 1,106,806,948,288.71
  5. Step 5: Solve for x
    x = 1,106,806,948,288.71/1,203,153.75
  6. Step 6: Final answer
    x = 919,921.46

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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.