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Finding the Fourth Proportional to 454,520.10, 681,780.15 and 201,702.90

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Solution

The fourth proportional to 454,520.10, 681,780.15 and 201,702.90 is: 302,554.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,520.10 : 681,780.15 = 201,702.90 : x
  2. Step 2: Convert to fraction form
    454,520.10/681,780.15 = 201,702.90/x
  3. Step 3: Cross multiply
    454,520.10x = 681,780.15 × 201,702.90
  4. Step 4: Simplify right side
    454,520.10x = 137,517,033,417.44
  5. Step 5: Solve for x
    x = 137,517,033,417.44/454,520.10
  6. Step 6: Final answer
    x = 302,554.35

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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.