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Finding the Fourth Proportional to 615,622.40, 923,433.60 and 546,809.60

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Solution

The fourth proportional to 615,622.40, 923,433.60 and 546,809.60 is: 820,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,622.40 : 923,433.60 = 546,809.60 : x
  2. Step 2: Convert to fraction form
    615,622.40/923,433.60 = 546,809.60/x
  3. Step 3: Cross multiply
    615,622.40x = 923,433.60 × 546,809.60
  4. Step 4: Simplify right side
    615,622.40x = 504,942,357,442.56
  5. Step 5: Solve for x
    x = 504,942,357,442.56/615,622.40
  6. Step 6: Final answer
    x = 820,214.40

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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.