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Finding the Fourth Proportional to 496,896.60, 745,344.90 and 472,402.20

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Solution

The fourth proportional to 496,896.60, 745,344.90 and 472,402.20 is: 708,603.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,896.60 : 745,344.90 = 472,402.20 : x
  2. Step 2: Convert to fraction form
    496,896.60/745,344.90 = 472,402.20/x
  3. Step 3: Cross multiply
    496,896.60x = 745,344.90 × 472,402.20
  4. Step 4: Simplify right side
    496,896.60x = 352,102,570,518.78
  5. Step 5: Solve for x
    x = 352,102,570,518.78/496,896.60
  6. Step 6: Final answer
    x = 708,603.30

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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.