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Finding the Fourth Proportional to 525,672.40, 788,508.60 and 401,256.40

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Solution

The fourth proportional to 525,672.40, 788,508.60 and 401,256.40 is: 601,884.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,672.40 : 788,508.60 = 401,256.40 : x
  2. Step 2: Convert to fraction form
    525,672.40/788,508.60 = 401,256.40/x
  3. Step 3: Cross multiply
    525,672.40x = 788,508.60 × 401,256.40
  4. Step 4: Simplify right side
    525,672.40x = 316,394,122,205.04
  5. Step 5: Solve for x
    x = 316,394,122,205.04/525,672.40
  6. Step 6: Final answer
    x = 601,884.60

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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.