Home / 893,987.76-1,233,703.12-491,579.76

Finding the Fourth Proportional to 893,987.76, 1,233,703.12 and 491,579.76

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Solution

The fourth proportional to 893,987.76, 1,233,703.12 and 491,579.76 is: 678,380.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,987.76 : 1,233,703.12 = 491,579.76 : x
  2. Step 2: Convert to fraction form
    893,987.76/1,233,703.12 = 491,579.76/x
  3. Step 3: Cross multiply
    893,987.76x = 1,233,703.12 × 491,579.76
  4. Step 4: Simplify right side
    893,987.76x = 606,463,483,640.85
  5. Step 5: Solve for x
    x = 606,463,483,640.85/893,987.76
  6. Step 6: Final answer
    x = 678,380.07

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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.