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Finding the Fourth Proportional to 423,901.32, 635,950.46 and 124,369.80

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Solution

The fourth proportional to 423,901.32, 635,950.46 and 124,369.80 is: 186,583.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,901.32 : 635,950.46 = 124,369.80 : x
  2. Step 2: Convert to fraction form
    423,901.32/635,950.46 = 124,369.80/x
  3. Step 3: Cross multiply
    423,901.32x = 635,950.46 × 124,369.80
  4. Step 4: Simplify right side
    423,901.32x = 79,093,031,520.11
  5. Step 5: Solve for x
    x = 79,093,031,520.11/423,901.32
  6. Step 6: Final answer
    x = 186,583.59

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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.