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Finding the Fourth Proportional to 607,112.20, 909,890.70 and 466,172.20

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Solution

The fourth proportional to 607,112.20, 909,890.70 and 466,172.20 is: 698,661.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,112.20 : 909,890.70 = 466,172.20 : x
  2. Step 2: Convert to fraction form
    607,112.20/909,890.70 = 466,172.20/x
  3. Step 3: Cross multiply
    607,112.20x = 909,890.70 × 466,172.20
  4. Step 4: Simplify right side
    607,112.20x = 424,165,749,378.54
  5. Step 5: Solve for x
    x = 424,165,749,378.54/607,112.20
  6. Step 6: Final answer
    x = 698,661.22

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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.