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Finding the Fourth Proportional to 615,735.80, 923,690.10 and 194,967.80

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Solution

The fourth proportional to 615,735.80, 923,690.10 and 194,967.80 is: 292,479.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,735.80 : 923,690.10 = 194,967.80 : x
  2. Step 2: Convert to fraction form
    615,735.80/923,690.10 = 194,967.80/x
  3. Step 3: Cross multiply
    615,735.80x = 923,690.10 × 194,967.80
  4. Step 4: Simplify right side
    615,735.80x = 180,089,826,678.78
  5. Step 5: Solve for x
    x = 180,089,826,678.78/615,735.80
  6. Step 6: Final answer
    x = 292,479.06

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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.