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Finding the Fourth Proportional to 996,915.20, 1,495,372.80 and 491,718.20

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Solution

The fourth proportional to 996,915.20, 1,495,372.80 and 491,718.20 is: 737,577.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,915.20 : 1,495,372.80 = 491,718.20 : x
  2. Step 2: Convert to fraction form
    996,915.20/1,495,372.80 = 491,718.20/x
  3. Step 3: Cross multiply
    996,915.20x = 1,495,372.80 × 491,718.20
  4. Step 4: Simplify right side
    996,915.20x = 735,302,021,544.96
  5. Step 5: Solve for x
    x = 735,302,021,544.96/996,915.20
  6. Step 6: Final answer
    x = 737,577.30

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Double scale
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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.