Home / 430,528.56-645,793.38-205,836.18

Finding the Fourth Proportional to 430,528.56, 645,793.38 and 205,836.18

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Solution

The fourth proportional to 430,528.56, 645,793.38 and 205,836.18 is: 308,754.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,528.56 : 645,793.38 = 205,836.18 : x
  2. Step 2: Convert to fraction form
    430,528.56/645,793.38 = 205,836.18/x
  3. Step 3: Cross multiply
    430,528.56x = 645,793.38 × 205,836.18
  4. Step 4: Simplify right side
    430,528.56x = 132,927,642,408.49
  5. Step 5: Solve for x
    x = 132,927,642,408.49/430,528.56
  6. Step 6: Final answer
    x = 308,754.53

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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.