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Finding the Fourth Proportional to 524,101.80, 784,986.30 and 430,789.80

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Solution

The fourth proportional to 524,101.80, 784,986.30 and 430,789.80 is: 645,225.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,101.80 : 784,986.30 = 430,789.80 : x
  2. Step 2: Convert to fraction form
    524,101.80/784,986.30 = 430,789.80/x
  3. Step 3: Cross multiply
    524,101.80x = 784,986.30 × 430,789.80
  4. Step 4: Simplify right side
    524,101.80x = 338,164,091,179.74
  5. Step 5: Solve for x
    x = 338,164,091,179.74/524,101.80
  6. Step 6: Final answer
    x = 645,225.97

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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.