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Finding the Fourth Proportional to 615,082.10, 922,623.15 and 559,969.70

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Solution

The fourth proportional to 615,082.10, 922,623.15 and 559,969.70 is: 839,954.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,082.10 : 922,623.15 = 559,969.70 : x
  2. Step 2: Convert to fraction form
    615,082.10/922,623.15 = 559,969.70/x
  3. Step 3: Cross multiply
    615,082.10x = 922,623.15 × 559,969.70
  4. Step 4: Simplify right side
    615,082.10x = 516,641,008,518.56
  5. Step 5: Solve for x
    x = 516,641,008,518.56/615,082.10
  6. Step 6: Final answer
    x = 839,954.55

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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.