Home / 628,816.10-943,139.10-250,015.55

Finding the Fourth Proportional to 628,816.10, 943,139.10 and 250,015.55

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Solution

The fourth proportional to 628,816.10, 943,139.10 and 250,015.55 is: 374,989.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,816.10 : 943,139.10 = 250,015.55 : x
  2. Step 2: Convert to fraction form
    628,816.10/943,139.10 = 250,015.55/x
  3. Step 3: Cross multiply
    628,816.10x = 943,139.10 × 250,015.55
  4. Step 4: Simplify right side
    628,816.10x = 235,799,440,813.01
  5. Step 5: Solve for x
    x = 235,799,440,813.01/628,816.10
  6. Step 6: Final answer
    x = 374,989.51

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Double scale
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Similar ratio
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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.