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Finding the Fourth Proportional to 615,163.10, 922,744.65 and 556,114.10

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Solution

The fourth proportional to 615,163.10, 922,744.65 and 556,114.10 is: 834,171.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,163.10 : 922,744.65 = 556,114.10 : x
  2. Step 2: Convert to fraction form
    615,163.10/922,744.65 = 556,114.10/x
  3. Step 3: Cross multiply
    615,163.10x = 922,744.65 × 556,114.10
  4. Step 4: Simplify right side
    615,163.10x = 513,151,310,564.57
  5. Step 5: Solve for x
    x = 513,151,310,564.57/615,163.10
  6. Step 6: Final answer
    x = 834,171.15

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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.