Home / 1,208,999.41-1,668,419.13-665,123.52

Finding the Fourth Proportional to 1,208,999.41, 1,668,419.13 and 665,123.52

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Solution

The fourth proportional to 1,208,999.41, 1,668,419.13 and 665,123.52 is: 917,870.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,999.41 : 1,668,419.13 = 665,123.52 : x
  2. Step 2: Convert to fraction form
    1,208,999.41/1,668,419.13 = 665,123.52/x
  3. Step 3: Cross multiply
    1,208,999.41x = 1,668,419.13 × 665,123.52
  4. Step 4: Simplify right side
    1,208,999.41x = 1,109,704,804,580.94
  5. Step 5: Solve for x
    x = 1,109,704,804,580.94/1,208,999.41
  6. Step 6: Final answer
    x = 917,870.43

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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.