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Finding the Fourth Proportional to 1,773,630.40, 2,658,890.40 and 1,063,940.80

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Solution

The fourth proportional to 1,773,630.40, 2,658,890.40 and 1,063,940.80 is: 1,594,978.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,773,630.40 : 2,658,890.40 = 1,063,940.80 : x
  2. Step 2: Convert to fraction form
    1,773,630.40/2,658,890.40 = 1,063,940.80/x
  3. Step 3: Cross multiply
    1,773,630.40x = 2,658,890.40 × 1,063,940.80
  4. Step 4: Simplify right side
    1,773,630.40x = 2,828,901,979,288.32
  5. Step 5: Solve for x
    x = 2,828,901,979,288.32/1,773,630.40
  6. Step 6: Final answer
    x = 1,594,978.29

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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.