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Finding the Fourth Proportional to 607,209.20, 909,064.20 and 544,223.60

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Solution

The fourth proportional to 607,209.20, 909,064.20 and 544,223.60 is: 814,767.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,209.20 : 909,064.20 = 544,223.60 : x
  2. Step 2: Convert to fraction form
    607,209.20/909,064.20 = 544,223.60/x
  3. Step 3: Cross multiply
    607,209.20x = 909,064.20 × 544,223.60
  4. Step 4: Simplify right side
    607,209.20x = 494,734,191,555.12
  5. Step 5: Solve for x
    x = 494,734,191,555.12/607,209.20
  6. Step 6: Final answer
    x = 814,767.29

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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.