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Finding the Fourth Proportional to 528,778.36, 793,065.66 and 149,696.20

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Solution

The fourth proportional to 528,778.36, 793,065.66 and 149,696.20 is: 224,515.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,778.36 : 793,065.66 = 149,696.20 : x
  2. Step 2: Convert to fraction form
    528,778.36/793,065.66 = 149,696.20/x
  3. Step 3: Cross multiply
    528,778.36x = 793,065.66 × 149,696.20
  4. Step 4: Simplify right side
    528,778.36x = 118,718,915,652.49
  5. Step 5: Solve for x
    x = 118,718,915,652.49/528,778.36
  6. Step 6: Final answer
    x = 224,515.46

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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.