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Finding the Fourth Proportional to 662,586.48, 914,129.19 and 375,940.53

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Solution

The fourth proportional to 662,586.48, 914,129.19 and 375,940.53 is: 518,661.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,586.48 : 914,129.19 = 375,940.53 : x
  2. Step 2: Convert to fraction form
    662,586.48/914,129.19 = 375,940.53/x
  3. Step 3: Cross multiply
    662,586.48x = 914,129.19 × 375,940.53
  4. Step 4: Simplify right side
    662,586.48x = 343,658,212,177.07
  5. Step 5: Solve for x
    x = 343,658,212,177.07/662,586.48
  6. Step 6: Final answer
    x = 518,661.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.