Home / 838,424.25-1,157,028.21-456,453.77

Finding the Fourth Proportional to 838,424.25, 1,157,028.21 and 456,453.77

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Solution

The fourth proportional to 838,424.25, 1,157,028.21 and 456,453.77 is: 629,907.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,424.25 : 1,157,028.21 = 456,453.77 : x
  2. Step 2: Convert to fraction form
    838,424.25/1,157,028.21 = 456,453.77/x
  3. Step 3: Cross multiply
    838,424.25x = 1,157,028.21 × 456,453.77
  4. Step 4: Simplify right side
    838,424.25x = 528,129,882,665.71
  5. Step 5: Solve for x
    x = 528,129,882,665.71/838,424.25
  6. Step 6: Final answer
    x = 629,907.69

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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.