Home / 557,945.16-769,948.11-316,249.98

Finding the Fourth Proportional to 557,945.16, 769,948.11 and 316,249.98

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Solution

The fourth proportional to 557,945.16, 769,948.11 and 316,249.98 is: 436,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,945.16 : 769,948.11 = 316,249.98 : x
  2. Step 2: Convert to fraction form
    557,945.16/769,948.11 = 316,249.98/x
  3. Step 3: Cross multiply
    557,945.16x = 769,948.11 × 316,249.98
  4. Step 4: Simplify right side
    557,945.16x = 243,496,074,388.54
  5. Step 5: Solve for x
    x = 243,496,074,388.54/557,945.16
  6. Step 6: Final answer
    x = 436,415.78

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Double scale
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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.