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Finding the Fourth Proportional to 497,660.40, 746,490.60 and 340,196.40

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Solution

The fourth proportional to 497,660.40, 746,490.60 and 340,196.40 is: 510,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,660.40 : 746,490.60 = 340,196.40 : x
  2. Step 2: Convert to fraction form
    497,660.40/746,490.60 = 340,196.40/x
  3. Step 3: Cross multiply
    497,660.40x = 746,490.60 × 340,196.40
  4. Step 4: Simplify right side
    497,660.40x = 253,953,414,753.84
  5. Step 5: Solve for x
    x = 253,953,414,753.84/497,660.40
  6. Step 6: Final answer
    x = 510,294.60

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Similar ratio
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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.