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Finding the Fourth Proportional to 526,534.40, 789,801.60 and 189,955.10

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Solution

The fourth proportional to 526,534.40, 789,801.60 and 189,955.10 is: 284,932.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,534.40 : 789,801.60 = 189,955.10 : x
  2. Step 2: Convert to fraction form
    526,534.40/789,801.60 = 189,955.10/x
  3. Step 3: Cross multiply
    526,534.40x = 789,801.60 × 189,955.10
  4. Step 4: Simplify right side
    526,534.40x = 150,026,841,908.16
  5. Step 5: Solve for x
    x = 150,026,841,908.16/526,534.40
  6. Step 6: Final answer
    x = 284,932.65

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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.