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Finding the Fourth Proportional to 462,429.50, 693,644.28 and 130,005.50

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Solution

The fourth proportional to 462,429.50, 693,644.28 and 130,005.50 is: 195,008.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,429.50 : 693,644.28 = 130,005.50 : x
  2. Step 2: Convert to fraction form
    462,429.50/693,644.28 = 130,005.50/x
  3. Step 3: Cross multiply
    462,429.50x = 693,644.28 × 130,005.50
  4. Step 4: Simplify right side
    462,429.50x = 90,177,571,443.54
  5. Step 5: Solve for x
    x = 90,177,571,443.54/462,429.50
  6. Step 6: Final answer
    x = 195,008.26

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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.