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Finding the Fourth Proportional to 734,608.80, 1,101,913.20 and 608,637.60

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Solution

The fourth proportional to 734,608.80, 1,101,913.20 and 608,637.60 is: 912,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,608.80 : 1,101,913.20 = 608,637.60 : x
  2. Step 2: Convert to fraction form
    734,608.80/1,101,913.20 = 608,637.60/x
  3. Step 3: Cross multiply
    734,608.80x = 1,101,913.20 × 608,637.60
  4. Step 4: Simplify right side
    734,608.80x = 670,665,805,456.32
  5. Step 5: Solve for x
    x = 670,665,805,456.32/734,608.80
  6. Step 6: Final answer
    x = 912,956.40

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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.