Home / 711,500.80-1,066,905.60-395,622.40

Finding the Fourth Proportional to 711,500.80, 1,066,905.60 and 395,622.40

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Solution

The fourth proportional to 711,500.80, 1,066,905.60 and 395,622.40 is: 593,241.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,500.80 : 1,066,905.60 = 395,622.40 : x
  2. Step 2: Convert to fraction form
    711,500.80/1,066,905.60 = 395,622.40/x
  3. Step 3: Cross multiply
    711,500.80x = 1,066,905.60 × 395,622.40
  4. Step 4: Simplify right side
    711,500.80x = 422,091,754,045.44
  5. Step 5: Solve for x
    x = 422,091,754,045.44/711,500.80
  6. Step 6: Final answer
    x = 593,241.43

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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.