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Finding the Fourth Proportional to 413,423.40, 619,544.70 and 235,554.60

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Solution

The fourth proportional to 413,423.40, 619,544.70 and 235,554.60 is: 352,995.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,423.40 : 619,544.70 = 235,554.60 : x
  2. Step 2: Convert to fraction form
    413,423.40/619,544.70 = 235,554.60/x
  3. Step 3: Cross multiply
    413,423.40x = 619,544.70 × 235,554.60
  4. Step 4: Simplify right side
    413,423.40x = 145,936,603,990.62
  5. Step 5: Solve for x
    x = 145,936,603,990.62/413,423.40
  6. Step 6: Final answer
    x = 352,995.51

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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.