Home / 819,957.90-1,131,543.60-457,372.38

Finding the Fourth Proportional to 819,957.90, 1,131,543.60 and 457,372.38

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Solution

The fourth proportional to 819,957.90, 1,131,543.60 and 457,372.38 is: 631,174.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,957.90 : 1,131,543.60 = 457,372.38 : x
  2. Step 2: Convert to fraction form
    819,957.90/1,131,543.60 = 457,372.38/x
  3. Step 3: Cross multiply
    819,957.90x = 1,131,543.60 × 457,372.38
  4. Step 4: Simplify right side
    819,957.90x = 517,536,789,405.77
  5. Step 5: Solve for x
    x = 517,536,789,405.77/819,957.90
  6. Step 6: Final answer
    x = 631,174.83

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1.5x scale

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.