Home / 716,090.16-988,229.79-393,825.18

Finding the Fourth Proportional to 716,090.16, 988,229.79 and 393,825.18

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Solution

The fourth proportional to 716,090.16, 988,229.79 and 393,825.18 is: 543,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,090.16 : 988,229.79 = 393,825.18 : x
  2. Step 2: Convert to fraction form
    716,090.16/988,229.79 = 393,825.18/x
  3. Step 3: Cross multiply
    716,090.16x = 988,229.79 × 393,825.18
  4. Step 4: Simplify right side
    716,090.16x = 389,189,774,928.11
  5. Step 5: Solve for x
    x = 389,189,774,928.11/716,090.16
  6. Step 6: Final answer
    x = 543,492.70

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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.