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Finding the Fourth Proportional to 619,423.68, 929,133.71 and 170,144.98

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Solution

The fourth proportional to 619,423.68, 929,133.71 and 170,144.98 is: 255,216.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,423.68 : 929,133.71 = 170,144.98 : x
  2. Step 2: Convert to fraction form
    619,423.68/929,133.71 = 170,144.98/x
  3. Step 3: Cross multiply
    619,423.68x = 929,133.71 × 170,144.98
  4. Step 4: Simplify right side
    619,423.68x = 158,087,434,607.80
  5. Step 5: Solve for x
    x = 158,087,434,607.80/619,423.68
  6. Step 6: Final answer
    x = 255,216.97

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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.