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Finding the Fourth Proportional to 292,938.40, 439,407.60 and 193,232.80

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Solution

The fourth proportional to 292,938.40, 439,407.60 and 193,232.80 is: 289,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,938.40 : 439,407.60 = 193,232.80 : x
  2. Step 2: Convert to fraction form
    292,938.40/439,407.60 = 193,232.80/x
  3. Step 3: Cross multiply
    292,938.40x = 439,407.60 × 193,232.80
  4. Step 4: Simplify right side
    292,938.40x = 84,907,960,889.28
  5. Step 5: Solve for x
    x = 84,907,960,889.28/292,938.40
  6. Step 6: Final answer
    x = 289,849.20

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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.