Home / 663,943.44-916,319.52-377,506.56

Finding the Fourth Proportional to 663,943.44, 916,319.52 and 377,506.56

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Solution

The fourth proportional to 663,943.44, 916,319.52 and 377,506.56 is: 521,003.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,943.44 : 916,319.52 = 377,506.56 : x
  2. Step 2: Convert to fraction form
    663,943.44/916,319.52 = 377,506.56/x
  3. Step 3: Cross multiply
    663,943.44x = 916,319.52 × 377,506.56
  4. Step 4: Simplify right side
    663,943.44x = 345,916,629,856.05
  5. Step 5: Solve for x
    x = 345,916,629,856.05/663,943.44
  6. Step 6: Final answer
    x = 521,003.16

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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.