Home / 691,973.20-1,037,765.40-218,803.60

Finding the Fourth Proportional to 691,973.20, 1,037,765.40 and 218,803.60

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Solution

The fourth proportional to 691,973.20, 1,037,765.40 and 218,803.60 is: 328,143.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,973.20 : 1,037,765.40 = 218,803.60 : x
  2. Step 2: Convert to fraction form
    691,973.20/1,037,765.40 = 218,803.60/x
  3. Step 3: Cross multiply
    691,973.20x = 1,037,765.40 × 218,803.60
  4. Step 4: Simplify right side
    691,973.20x = 227,066,805,475.44
  5. Step 5: Solve for x
    x = 227,066,805,475.44/691,973.20
  6. Step 6: Final answer
    x = 328,143.93

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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.