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Finding the Fourth Proportional to 615,196.60, 922,138.80 and 235,970.80

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Solution

The fourth proportional to 615,196.60, 922,138.80 and 235,970.80 is: 353,704.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,196.60 : 922,138.80 = 235,970.80 : x
  2. Step 2: Convert to fraction form
    615,196.60/922,138.80 = 235,970.80/x
  3. Step 3: Cross multiply
    615,196.60x = 922,138.80 × 235,970.80
  4. Step 4: Simplify right side
    615,196.60x = 217,597,830,347.04
  5. Step 5: Solve for x
    x = 217,597,830,347.04/615,196.60
  6. Step 6: Final answer
    x = 353,704.54

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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.