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Finding the Fourth Proportional to 606,938.60, 910,407.90 and 251,915.60

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Solution

The fourth proportional to 606,938.60, 910,407.90 and 251,915.60 is: 377,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,938.60 : 910,407.90 = 251,915.60 : x
  2. Step 2: Convert to fraction form
    606,938.60/910,407.90 = 251,915.60/x
  3. Step 3: Cross multiply
    606,938.60x = 910,407.90 × 251,915.60
  4. Step 4: Simplify right side
    606,938.60x = 229,345,952,373.24
  5. Step 5: Solve for x
    x = 229,345,952,373.24/606,938.60
  6. Step 6: Final answer
    x = 377,873.40

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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.