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Finding the Fourth Proportional to 4,893,970.40, 7,341,992.40 and 1,481,976.80

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Solution

The fourth proportional to 4,893,970.40, 7,341,992.40 and 1,481,976.80 is: 2,223,279.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,893,970.40 : 7,341,992.40 = 1,481,976.80 : x
  2. Step 2: Convert to fraction form
    4,893,970.40/7,341,992.40 = 1,481,976.80/x
  3. Step 3: Cross multiply
    4,893,970.40x = 7,341,992.40 × 1,481,976.80
  4. Step 4: Simplify right side
    4,893,970.40x = 10,880,662,402,576.32
  5. Step 5: Solve for x
    x = 10,880,662,402,576.32/4,893,970.40
  6. Step 6: Final answer
    x = 2,223,279.16

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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.