Home / 917,953.04-1,375,945.13-443,986.40

Finding the Fourth Proportional to 917,953.04, 1,375,945.13 and 443,986.40

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Solution

The fourth proportional to 917,953.04, 1,375,945.13 and 443,986.40 is: 665,503.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,953.04 : 1,375,945.13 = 443,986.40 : x
  2. Step 2: Convert to fraction form
    917,953.04/1,375,945.13 = 443,986.40/x
  3. Step 3: Cross multiply
    917,953.04x = 1,375,945.13 × 443,986.40
  4. Step 4: Simplify right side
    917,953.04x = 610,900,915,766.57
  5. Step 5: Solve for x
    x = 610,900,915,766.57/917,953.04
  6. Step 6: Final answer
    x = 665,503.45

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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.