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Finding the Fourth Proportional to 491,856.30, 737,784.45 and 404,376.30

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Solution

The fourth proportional to 491,856.30, 737,784.45 and 404,376.30 is: 606,564.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,856.30 : 737,784.45 = 404,376.30 : x
  2. Step 2: Convert to fraction form
    491,856.30/737,784.45 = 404,376.30/x
  3. Step 3: Cross multiply
    491,856.30x = 737,784.45 × 404,376.30
  4. Step 4: Simplify right side
    491,856.30x = 298,342,546,088.54
  5. Step 5: Solve for x
    x = 298,342,546,088.54/491,856.30
  6. Step 6: Final answer
    x = 606,564.45

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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.