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Finding the Fourth Proportional to 1,845,692.80, 2,766,570.90 and 708,015.40

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Solution

The fourth proportional to 1,845,692.80, 2,766,570.90 and 708,015.40 is: 1,061,268.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845,692.80 : 2,766,570.90 = 708,015.40 : x
  2. Step 2: Convert to fraction form
    1,845,692.80/2,766,570.90 = 708,015.40/x
  3. Step 3: Cross multiply
    1,845,692.80x = 2,766,570.90 × 708,015.40
  4. Step 4: Simplify right side
    1,845,692.80x = 1,958,774,802,391.86
  5. Step 5: Solve for x
    x = 1,958,774,802,391.86/1,845,692.80
  6. Step 6: Final answer
    x = 1,061,268.05

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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.