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Finding the Fourth Proportional to 511,483.02, 767,445.81 and 274,549.11

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Solution

The fourth proportional to 511,483.02, 767,445.81 and 274,549.11 is: 411,942.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,483.02 : 767,445.81 = 274,549.11 : x
  2. Step 2: Convert to fraction form
    511,483.02/767,445.81 = 274,549.11/x
  3. Step 3: Cross multiply
    511,483.02x = 767,445.81 × 274,549.11
  4. Step 4: Simplify right side
    511,483.02x = 210,701,564,108.73
  5. Step 5: Solve for x
    x = 210,701,564,108.73/511,483.02
  6. Step 6: Final answer
    x = 411,942.44

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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.