Home / 678,588.40-1,017,882.60-627,266.80

Finding the Fourth Proportional to 678,588.40, 1,017,882.60 and 627,266.80

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Solution

The fourth proportional to 678,588.40, 1,017,882.60 and 627,266.80 is: 940,900.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,588.40 : 1,017,882.60 = 627,266.80 : x
  2. Step 2: Convert to fraction form
    678,588.40/1,017,882.60 = 627,266.80/x
  3. Step 3: Cross multiply
    678,588.40x = 1,017,882.60 × 627,266.80
  4. Step 4: Simplify right side
    678,588.40x = 638,483,961,277.68
  5. Step 5: Solve for x
    x = 638,483,961,277.68/678,588.40
  6. Step 6: Final answer
    x = 940,900.20

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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.