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Finding the Fourth Proportional to 497,774.40, 746,661.60 and 451,118.40

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Solution

The fourth proportional to 497,774.40, 746,661.60 and 451,118.40 is: 676,677.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,774.40 : 746,661.60 = 451,118.40 : x
  2. Step 2: Convert to fraction form
    497,774.40/746,661.60 = 451,118.40/x
  3. Step 3: Cross multiply
    497,774.40x = 746,661.60 × 451,118.40
  4. Step 4: Simplify right side
    497,774.40x = 336,832,786,333.44
  5. Step 5: Solve for x
    x = 336,832,786,333.44/497,774.40
  6. Step 6: Final answer
    x = 676,677.60

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Double scale
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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.