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Finding the Fourth Proportional to 611,168.52, 918,247.32 and 577,178.40

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Solution

The fourth proportional to 611,168.52, 918,247.32 and 577,178.40 is: 867,179.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,168.52 : 918,247.32 = 577,178.40 : x
  2. Step 2: Convert to fraction form
    611,168.52/918,247.32 = 577,178.40/x
  3. Step 3: Cross multiply
    611,168.52x = 918,247.32 × 577,178.40
  4. Step 4: Simplify right side
    611,168.52x = 529,992,518,961.89
  5. Step 5: Solve for x
    x = 529,992,518,961.89/611,168.52
  6. Step 6: Final answer
    x = 867,179.02

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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.