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Finding the Fourth Proportional to 615,365.60, 923,156.73 and 210,462.62

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Solution

The fourth proportional to 615,365.60, 923,156.73 and 210,462.62 is: 315,730.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,365.60 : 923,156.73 = 210,462.62 : x
  2. Step 2: Convert to fraction form
    615,365.60/923,156.73 = 210,462.62/x
  3. Step 3: Cross multiply
    615,365.60x = 923,156.73 × 210,462.62
  4. Step 4: Simplify right side
    615,365.60x = 194,289,979,450.65
  5. Step 5: Solve for x
    x = 194,289,979,450.65/615,365.60
  6. Step 6: Final answer
    x = 315,730.98

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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.