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Finding the Fourth Proportional to 403,261.40, 604,892.10 and 282,992.60

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Solution

The fourth proportional to 403,261.40, 604,892.10 and 282,992.60 is: 424,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,261.40 : 604,892.10 = 282,992.60 : x
  2. Step 2: Convert to fraction form
    403,261.40/604,892.10 = 282,992.60/x
  3. Step 3: Cross multiply
    403,261.40x = 604,892.10 × 282,992.60
  4. Step 4: Simplify right side
    403,261.40x = 171,179,988,098.46
  5. Step 5: Solve for x
    x = 171,179,988,098.46/403,261.40
  6. Step 6: Final answer
    x = 424,488.90

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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.