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Finding the Fourth Proportional to 615,441.00, 922,384.95 and 311,911.42

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Solution

The fourth proportional to 615,441.00, 922,384.95 and 311,911.42 is: 467,473.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,441.00 : 922,384.95 = 311,911.42 : x
  2. Step 2: Convert to fraction form
    615,441.00/922,384.95 = 311,911.42/x
  3. Step 3: Cross multiply
    615,441.00x = 922,384.95 × 311,911.42
  4. Step 4: Simplify right side
    615,441.00x = 287,702,400,134.31
  5. Step 5: Solve for x
    x = 287,702,400,134.31/615,441.00
  6. Step 6: Final answer
    x = 467,473.57

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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.