Home / 557,787.21-769,744.27-316,115.51

Finding the Fourth Proportional to 557,787.21, 769,744.27 and 316,115.51

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Solution

The fourth proportional to 557,787.21, 769,744.27 and 316,115.51 is: 436,238.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,787.21 : 769,744.27 = 316,115.51 : x
  2. Step 2: Convert to fraction form
    557,787.21/769,744.27 = 316,115.51/x
  3. Step 3: Cross multiply
    557,787.21x = 769,744.27 × 316,115.51
  4. Step 4: Simplify right side
    557,787.21x = 243,328,101,578.71
  5. Step 5: Solve for x
    x = 243,328,101,578.71/557,787.21
  6. Step 6: Final answer
    x = 436,238.22

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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.