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Finding the Fourth Proportional to 487,554.13, 731,409.12 and 150,515.56

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Solution

The fourth proportional to 487,554.13, 731,409.12 and 150,515.56 is: 225,797.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,554.13 : 731,409.12 = 150,515.56 : x
  2. Step 2: Convert to fraction form
    487,554.13/731,409.12 = 150,515.56/x
  3. Step 3: Cross multiply
    487,554.13x = 731,409.12 × 150,515.56
  4. Step 4: Simplify right side
    487,554.13x = 110,088,453,285.91
  5. Step 5: Solve for x
    x = 110,088,453,285.91/487,554.13
  6. Step 6: Final answer
    x = 225,797.40

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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.