Home / 628,314.26-942,160.02-223,445.78

Finding the Fourth Proportional to 628,314.26, 942,160.02 and 223,445.78

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Solution

The fourth proportional to 628,314.26, 942,160.02 and 223,445.78 is: 335,057.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,314.26 : 942,160.02 = 223,445.78 : x
  2. Step 2: Convert to fraction form
    628,314.26/942,160.02 = 223,445.78/x
  3. Step 3: Cross multiply
    628,314.26x = 942,160.02 × 223,445.78
  4. Step 4: Simplify right side
    628,314.26x = 210,521,675,842.92
  5. Step 5: Solve for x
    x = 210,521,675,842.92/628,314.26
  6. Step 6: Final answer
    x = 335,057.93

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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.