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Finding the Fourth Proportional to 488,628.40, 732,942.60 and 322,416.40

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Solution

The fourth proportional to 488,628.40, 732,942.60 and 322,416.40 is: 483,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,628.40 : 732,942.60 = 322,416.40 : x
  2. Step 2: Convert to fraction form
    488,628.40/732,942.60 = 322,416.40/x
  3. Step 3: Cross multiply
    488,628.40x = 732,942.60 × 322,416.40
  4. Step 4: Simplify right side
    488,628.40x = 236,312,714,498.64
  5. Step 5: Solve for x
    x = 236,312,714,498.64/488,628.40
  6. Step 6: Final answer
    x = 483,624.60

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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.