Home / 1,292,211.84-1,938,539.20-439,193.28

Finding the Fourth Proportional to 1,292,211.84, 1,938,539.20 and 439,193.28

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Solution

The fourth proportional to 1,292,211.84, 1,938,539.20 and 439,193.28 is: 658,865.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,211.84 : 1,938,539.20 = 439,193.28 : x
  2. Step 2: Convert to fraction form
    1,292,211.84/1,938,539.20 = 439,193.28/x
  3. Step 3: Cross multiply
    1,292,211.84x = 1,938,539.20 × 439,193.28
  4. Step 4: Simplify right side
    1,292,211.84x = 851,393,389,656.58
  5. Step 5: Solve for x
    x = 851,393,389,656.58/1,292,211.84
  6. Step 6: Final answer
    x = 658,865.18

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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.