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Finding the Fourth Proportional to 1,866,705.40, 2,793,059.70 and 1,698,743.80

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Solution

The fourth proportional to 1,866,705.40, 2,793,059.70 and 1,698,743.80 is: 2,541,747.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,705.40 : 2,793,059.70 = 1,698,743.80 : x
  2. Step 2: Convert to fraction form
    1,866,705.40/2,793,059.70 = 1,698,743.80/x
  3. Step 3: Cross multiply
    1,866,705.40x = 2,793,059.70 × 1,698,743.80
  4. Step 4: Simplify right side
    1,866,705.40x = 4,744,692,848,404.86
  5. Step 5: Solve for x
    x = 4,744,692,848,404.86/1,866,705.40
  6. Step 6: Final answer
    x = 2,541,747.00

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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.