Home / 557,905.08-769,905.90-316,233.36

Finding the Fourth Proportional to 557,905.08, 769,905.90 and 316,233.36

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Solution

The fourth proportional to 557,905.08, 769,905.90 and 316,233.36 is: 436,400.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,905.08 : 769,905.90 = 316,233.36 : x
  2. Step 2: Convert to fraction form
    557,905.08/769,905.90 = 316,233.36/x
  3. Step 3: Cross multiply
    557,905.08x = 769,905.90 × 316,233.36
  4. Step 4: Simplify right side
    557,905.08x = 243,469,929,640.82
  5. Step 5: Solve for x
    x = 243,469,929,640.82/557,905.08
  6. Step 6: Final answer
    x = 436,400.27

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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.