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Finding the Fourth Proportional to 966,404.60, 1,449,606.90 and 879,313.40

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Solution

The fourth proportional to 966,404.60, 1,449,606.90 and 879,313.40 is: 1,318,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,404.60 : 1,449,606.90 = 879,313.40 : x
  2. Step 2: Convert to fraction form
    966,404.60/1,449,606.90 = 879,313.40/x
  3. Step 3: Cross multiply
    966,404.60x = 1,449,606.90 × 879,313.40
  4. Step 4: Simplify right side
    966,404.60x = 1,274,658,771,902.46
  5. Step 5: Solve for x
    x = 1,274,658,771,902.46/966,404.60
  6. Step 6: Final answer
    x = 1,318,970.10

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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.