Home / 662,946.80-914,842.40-405,255.33

Finding the Fourth Proportional to 662,946.80, 914,842.40 and 405,255.33

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Solution

The fourth proportional to 662,946.80, 914,842.40 and 405,255.33 is: 559,237.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,946.80 : 914,842.40 = 405,255.33 : x
  2. Step 2: Convert to fraction form
    662,946.80/914,842.40 = 405,255.33/x
  3. Step 3: Cross multiply
    662,946.80x = 914,842.40 × 405,255.33
  4. Step 4: Simplify right side
    662,946.80x = 370,744,756,683.72
  5. Step 5: Solve for x
    x = 370,744,756,683.72/662,946.80
  6. Step 6: Final answer
    x = 559,237.57

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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.