Home / 764,825.16-1,055,459.62-425,286.12

Finding the Fourth Proportional to 764,825.16, 1,055,459.62 and 425,286.12

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Solution

The fourth proportional to 764,825.16, 1,055,459.62 and 425,286.12 is: 586,895.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,825.16 : 1,055,459.62 = 425,286.12 : x
  2. Step 2: Convert to fraction form
    764,825.16/1,055,459.62 = 425,286.12/x
  3. Step 3: Cross multiply
    764,825.16x = 1,055,459.62 × 425,286.12
  4. Step 4: Simplify right side
    764,825.16x = 448,872,326,606.47
  5. Step 5: Solve for x
    x = 448,872,326,606.47/764,825.16
  6. Step 6: Final answer
    x = 586,895.35

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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.