Home / 663,919.44-916,286.28-377,482.44

Finding the Fourth Proportional to 663,919.44, 916,286.28 and 377,482.44

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Solution

The fourth proportional to 663,919.44, 916,286.28 and 377,482.44 is: 520,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,919.44 : 916,286.28 = 377,482.44 : x
  2. Step 2: Convert to fraction form
    663,919.44/916,286.28 = 377,482.44/x
  3. Step 3: Cross multiply
    663,919.44x = 916,286.28 × 377,482.44
  4. Step 4: Simplify right side
    663,919.44x = 345,881,980,712.92
  5. Step 5: Solve for x
    x = 345,881,980,712.92/663,919.44
  6. Step 6: Final answer
    x = 520,969.80

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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.