Home / 1,189,818.50-1,784,057.04-390,885.54

Finding the Fourth Proportional to 1,189,818.50, 1,784,057.04 and 390,885.54

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Solution

The fourth proportional to 1,189,818.50, 1,784,057.04 and 390,885.54 is: 586,107.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,818.50 : 1,784,057.04 = 390,885.54 : x
  2. Step 2: Convert to fraction form
    1,189,818.50/1,784,057.04 = 390,885.54/x
  3. Step 3: Cross multiply
    1,189,818.50x = 1,784,057.04 × 390,885.54
  4. Step 4: Simplify right side
    1,189,818.50x = 697,362,099,471.20
  5. Step 5: Solve for x
    x = 697,362,099,471.20/1,189,818.50
  6. Step 6: Final answer
    x = 586,107.96

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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.