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Finding the Fourth Proportional to 903,715.72, 1,354,627.74 and 304,469.84

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Solution

The fourth proportional to 903,715.72, 1,354,627.74 and 304,469.84 is: 456,386.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,715.72 : 1,354,627.74 = 304,469.84 : x
  2. Step 2: Convert to fraction form
    903,715.72/1,354,627.74 = 304,469.84/x
  3. Step 3: Cross multiply
    903,715.72x = 1,354,627.74 × 304,469.84
  4. Step 4: Simplify right side
    903,715.72x = 412,443,291,257.36
  5. Step 5: Solve for x
    x = 412,443,291,257.36/903,715.72
  6. Step 6: Final answer
    x = 456,386.10

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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.