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Finding the Fourth Proportional to 563,978.60, 845,771.13 and 226,931.93

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Solution

The fourth proportional to 563,978.60, 845,771.13 and 226,931.93 is: 340,318.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,978.60 : 845,771.13 = 226,931.93 : x
  2. Step 2: Convert to fraction form
    563,978.60/845,771.13 = 226,931.93/x
  3. Step 3: Cross multiply
    563,978.60x = 845,771.13 × 226,931.93
  4. Step 4: Simplify right side
    563,978.60x = 191,932,474,869.18
  5. Step 5: Solve for x
    x = 191,932,474,869.18/563,978.60
  6. Step 6: Final answer
    x = 340,318.72

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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.