Home / 430,675.80-645,538.01-177,816.89

Finding the Fourth Proportional to 430,675.80, 645,538.01 and 177,816.89

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Solution

The fourth proportional to 430,675.80, 645,538.01 and 177,816.89 is: 266,528.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,675.80 : 645,538.01 = 177,816.89 : x
  2. Step 2: Convert to fraction form
    430,675.80/645,538.01 = 177,816.89/x
  3. Step 3: Cross multiply
    430,675.80x = 645,538.01 × 177,816.89
  4. Step 4: Simplify right side
    430,675.80x = 114,787,557,198.21
  5. Step 5: Solve for x
    x = 114,787,557,198.21/430,675.80
  6. Step 6: Final answer
    x = 266,528.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.