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Finding the Fourth Proportional to 744,618, 1,027,495.08 and 422,225.04

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Solution

The fourth proportional to 744,618, 1,027,495.08 and 422,225.04 is: 582,626.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,618 : 1,027,495.08 = 422,225.04 : x
  2. Step 2: Convert to fraction form
    744,618/1,027,495.08 = 422,225.04/x
  3. Step 3: Cross multiply
    744,618x = 1,027,495.08 × 422,225.04
  4. Step 4: Simplify right side
    744,618x = 433,834,151,252.80
  5. Step 5: Solve for x
    x = 433,834,151,252.80/744,618
  6. Step 6: Final answer
    x = 582,626.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.