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Finding the Fourth Proportional to 576,090.40, 862,580.40 and 451,674.40

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Solution

The fourth proportional to 576,090.40, 862,580.40 and 451,674.40 is: 676,292.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,090.40 : 862,580.40 = 451,674.40 : x
  2. Step 2: Convert to fraction form
    576,090.40/862,580.40 = 451,674.40/x
  3. Step 3: Cross multiply
    576,090.40x = 862,580.40 × 451,674.40
  4. Step 4: Simplify right side
    576,090.40x = 389,605,484,621.76
  5. Step 5: Solve for x
    x = 389,605,484,621.76/576,090.40
  6. Step 6: Final answer
    x = 676,292.27

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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.