Home / 628,741.76-943,229.28-208,021.28

Finding the Fourth Proportional to 628,741.76, 943,229.28 and 208,021.28

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Solution

The fourth proportional to 628,741.76, 943,229.28 and 208,021.28 is: 312,070.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,741.76 : 943,229.28 = 208,021.28 : x
  2. Step 2: Convert to fraction form
    628,741.76/943,229.28 = 208,021.28/x
  3. Step 3: Cross multiply
    628,741.76x = 943,229.28 × 208,021.28
  4. Step 4: Simplify right side
    628,741.76x = 196,211,762,159.08
  5. Step 5: Solve for x
    x = 196,211,762,159.08/628,741.76
  6. Step 6: Final answer
    x = 312,070.51

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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.