Home / 663,378.46-916,036.44-629,327.53

Finding the Fourth Proportional to 663,378.46, 916,036.44 and 629,327.53

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Solution

The fourth proportional to 663,378.46, 916,036.44 and 629,327.53 is: 869,016.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,378.46 : 916,036.44 = 629,327.53 : x
  2. Step 2: Convert to fraction form
    663,378.46/916,036.44 = 629,327.53/x
  3. Step 3: Cross multiply
    663,378.46x = 916,036.44 × 629,327.53
  4. Step 4: Simplify right side
    663,378.46x = 576,486,950,175.19
  5. Step 5: Solve for x
    x = 576,486,950,175.19/663,378.46
  6. Step 6: Final answer
    x = 869,016.68

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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.