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Finding the Fourth Proportional to 600,749.65, 901,478.95 and 221,938.48

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Solution

The fourth proportional to 600,749.65, 901,478.95 and 221,938.48 is: 333,038.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    600,749.65 : 901,478.95 = 221,938.48 : x
  2. Step 2: Convert to fraction form
    600,749.65/901,478.95 = 221,938.48/x
  3. Step 3: Cross multiply
    600,749.65x = 901,478.95 × 221,938.48
  4. Step 4: Simplify right side
    600,749.65x = 200,072,867,915.00
  5. Step 5: Solve for x
    x = 200,072,867,915.00/600,749.65
  6. Step 6: Final answer
    x = 333,038.68

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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.