Home / 810,171.31-1,118,058.98-447,618.55

Finding the Fourth Proportional to 810,171.31, 1,118,058.98 and 447,618.55

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Solution

The fourth proportional to 810,171.31, 1,118,058.98 and 447,618.55 is: 617,726.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,171.31 : 1,118,058.98 = 447,618.55 : x
  2. Step 2: Convert to fraction form
    810,171.31/1,118,058.98 = 447,618.55/x
  3. Step 3: Cross multiply
    810,171.31x = 1,118,058.98 × 447,618.55
  4. Step 4: Simplify right side
    810,171.31x = 500,463,940,561.13
  5. Step 5: Solve for x
    x = 500,463,940,561.13/810,171.31
  6. Step 6: Final answer
    x = 617,726.07

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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.