Home / 714,433.96-985,931.58-392,174.02

Finding the Fourth Proportional to 714,433.96, 985,931.58 and 392,174.02

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Solution

The fourth proportional to 714,433.96, 985,931.58 and 392,174.02 is: 541,207.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,433.96 : 985,931.58 = 392,174.02 : x
  2. Step 2: Convert to fraction form
    714,433.96/985,931.58 = 392,174.02/x
  3. Step 3: Cross multiply
    714,433.96x = 985,931.58 × 392,174.02
  4. Step 4: Simplify right side
    714,433.96x = 386,656,751,173.55
  5. Step 5: Solve for x
    x = 386,656,751,173.55/714,433.96
  6. Step 6: Final answer
    x = 541,207.13

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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.