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Finding the Fourth Proportional to 966,481.80, 1,449,722.70 and 742,970.40

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Solution

The fourth proportional to 966,481.80, 1,449,722.70 and 742,970.40 is: 1,114,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,481.80 : 1,449,722.70 = 742,970.40 : x
  2. Step 2: Convert to fraction form
    966,481.80/1,449,722.70 = 742,970.40/x
  3. Step 3: Cross multiply
    966,481.80x = 1,449,722.70 × 742,970.40
  4. Step 4: Simplify right side
    966,481.80x = 1,077,101,054,308.08
  5. Step 5: Solve for x
    x = 1,077,101,054,308.08/966,481.80
  6. Step 6: Final answer
    x = 1,114,455.60

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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.