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Finding the Fourth Proportional to 536,638.10, 804,957.15 and 480,650.90

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Solution

The fourth proportional to 536,638.10, 804,957.15 and 480,650.90 is: 720,976.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,638.10 : 804,957.15 = 480,650.90 : x
  2. Step 2: Convert to fraction form
    536,638.10/804,957.15 = 480,650.90/x
  3. Step 3: Cross multiply
    536,638.10x = 804,957.15 × 480,650.90
  4. Step 4: Simplify right side
    536,638.10x = 386,903,378,608.94
  5. Step 5: Solve for x
    x = 386,903,378,608.94/536,638.10
  6. Step 6: Final answer
    x = 720,976.35

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Half scale
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Double scale
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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.