Home / 716,094.29-988,190.40-393,804.38

Finding the Fourth Proportional to 716,094.29, 988,190.40 and 393,804.38

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Solution

The fourth proportional to 716,094.29, 988,190.40 and 393,804.38 is: 543,439.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,094.29 : 988,190.40 = 393,804.38 : x
  2. Step 2: Convert to fraction form
    716,094.29/988,190.40 = 393,804.38/x
  3. Step 3: Cross multiply
    716,094.29x = 988,190.40 × 393,804.38
  4. Step 4: Simplify right side
    716,094.29x = 389,153,707,793.95
  5. Step 5: Solve for x
    x = 389,153,707,793.95/716,094.29
  6. Step 6: Final answer
    x = 543,439.20

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.