Home / 666,944.80-1,000,435.04-217,692.96

Finding the Fourth Proportional to 666,944.80, 1,000,435.04 and 217,692.96

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Solution

The fourth proportional to 666,944.80, 1,000,435.04 and 217,692.96 is: 326,545.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,944.80 : 1,000,435.04 = 217,692.96 : x
  2. Step 2: Convert to fraction form
    666,944.80/1,000,435.04 = 217,692.96/x
  3. Step 3: Cross multiply
    666,944.80x = 1,000,435.04 × 217,692.96
  4. Step 4: Simplify right side
    666,944.80x = 217,787,665,145.32
  5. Step 5: Solve for x
    x = 217,787,665,145.32/666,944.80
  6. Step 6: Final answer
    x = 326,545.26

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1.5x scale

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.