Home / 628,052.20-942,078.30-559,239.40

Finding the Fourth Proportional to 628,052.20, 942,078.30 and 559,239.40

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Solution

The fourth proportional to 628,052.20, 942,078.30 and 559,239.40 is: 838,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,052.20 : 942,078.30 = 559,239.40 : x
  2. Step 2: Convert to fraction form
    628,052.20/942,078.30 = 559,239.40/x
  3. Step 3: Cross multiply
    628,052.20x = 942,078.30 × 559,239.40
  4. Step 4: Simplify right side
    628,052.20x = 526,847,303,245.02
  5. Step 5: Solve for x
    x = 526,847,303,245.02/628,052.20
  6. Step 6: Final answer
    x = 838,859.10

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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.