Home / 1,210,648.28-1,670,770.44-666,783.95

Finding the Fourth Proportional to 1,210,648.28, 1,670,770.44 and 666,783.95

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Solution

The fourth proportional to 1,210,648.28, 1,670,770.44 and 666,783.95 is: 920,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,648.28 : 1,670,770.44 = 666,783.95 : x
  2. Step 2: Convert to fraction form
    1,210,648.28/1,670,770.44 = 666,783.95/x
  3. Step 3: Cross multiply
    1,210,648.28x = 1,670,770.44 × 666,783.95
  4. Step 4: Simplify right side
    1,210,648.28x = 1,114,042,905,172.59
  5. Step 5: Solve for x
    x = 1,114,042,905,172.59/1,210,648.28
  6. Step 6: Final answer
    x = 920,203.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.