Home / 889,346.68-1,227,298.14-481,448.21

Finding the Fourth Proportional to 889,346.68, 1,227,298.14 and 481,448.21

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Solution

The fourth proportional to 889,346.68, 1,227,298.14 and 481,448.21 is: 664,398.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,346.68 : 1,227,298.14 = 481,448.21 : x
  2. Step 2: Convert to fraction form
    889,346.68/1,227,298.14 = 481,448.21/x
  3. Step 3: Cross multiply
    889,346.68x = 1,227,298.14 × 481,448.21
  4. Step 4: Simplify right side
    889,346.68x = 590,880,492,639.33
  5. Step 5: Solve for x
    x = 590,880,492,639.33/889,346.68
  6. Step 6: Final answer
    x = 664,398.38

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Half scale
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Double scale
Find fourth proportional to 889,347.68, 1,227,299.52 and 481,449.21
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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.