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Finding the Fourth Proportional to 334,938.40, 502,407.60 and 271,952.80

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Solution

The fourth proportional to 334,938.40, 502,407.60 and 271,952.80 is: 407,929.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,938.40 : 502,407.60 = 271,952.80 : x
  2. Step 2: Convert to fraction form
    334,938.40/502,407.60 = 271,952.80/x
  3. Step 3: Cross multiply
    334,938.40x = 502,407.60 × 271,952.80
  4. Step 4: Simplify right side
    334,938.40x = 136,631,153,561.28
  5. Step 5: Solve for x
    x = 136,631,153,561.28/334,938.40
  6. Step 6: Final answer
    x = 407,929.20

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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.