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Finding the Fourth Proportional to 403,892.40, 604,672.20 and 246,428.40

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Solution

The fourth proportional to 403,892.40, 604,672.20 and 246,428.40 is: 368,930.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,892.40 : 604,672.20 = 246,428.40 : x
  2. Step 2: Convert to fraction form
    403,892.40/604,672.20 = 246,428.40/x
  3. Step 3: Cross multiply
    403,892.40x = 604,672.20 × 246,428.40
  4. Step 4: Simplify right side
    403,892.40x = 149,008,402,770.48
  5. Step 5: Solve for x
    x = 149,008,402,770.48/403,892.40
  6. Step 6: Final answer
    x = 368,930.94

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1.5x scale

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.