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Finding the Fourth Proportional to 963,921.10, 1,445,881.65 and 739,972.30

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Solution

The fourth proportional to 963,921.10, 1,445,881.65 and 739,972.30 is: 1,109,958.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    963,921.10 : 1,445,881.65 = 739,972.30 : x
  2. Step 2: Convert to fraction form
    963,921.10/1,445,881.65 = 739,972.30/x
  3. Step 3: Cross multiply
    963,921.10x = 1,445,881.65 × 739,972.30
  4. Step 4: Simplify right side
    963,921.10x = 1,069,912,370,078.30
  5. Step 5: Solve for x
    x = 1,069,912,370,078.30/963,921.10
  6. Step 6: Final answer
    x = 1,109,958.45

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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.