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Finding the Fourth Proportional to 576,313.80, 864,402.66 and 155,622.48

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Solution

The fourth proportional to 576,313.80, 864,402.66 and 155,622.48 is: 233,415.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,313.80 : 864,402.66 = 155,622.48 : x
  2. Step 2: Convert to fraction form
    576,313.80/864,402.66 = 155,622.48/x
  3. Step 3: Cross multiply
    576,313.80x = 864,402.66 × 155,622.48
  4. Step 4: Simplify right side
    576,313.80x = 134,520,485,667.80
  5. Step 5: Solve for x
    x = 134,520,485,667.80/576,313.80
  6. Step 6: Final answer
    x = 233,415.35

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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.