Home / 819,676.36-1,131,159.36-457,123.60

Finding the Fourth Proportional to 819,676.36, 1,131,159.36 and 457,123.60

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Solution

The fourth proportional to 819,676.36, 1,131,159.36 and 457,123.60 is: 630,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,676.36 : 1,131,159.36 = 457,123.60 : x
  2. Step 2: Convert to fraction form
    819,676.36/1,131,159.36 = 457,123.60/x
  3. Step 3: Cross multiply
    819,676.36x = 1,131,159.36 × 457,123.60
  4. Step 4: Simplify right side
    819,676.36x = 517,079,638,816.90
  5. Step 5: Solve for x
    x = 517,079,638,816.90/819,676.36
  6. Step 6: Final answer
    x = 630,833.90

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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.