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Finding the Fourth Proportional to 627,186.40, 940,779.60 and 623,687.20

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Solution

The fourth proportional to 627,186.40, 940,779.60 and 623,687.20 is: 935,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,186.40 : 940,779.60 = 623,687.20 : x
  2. Step 2: Convert to fraction form
    627,186.40/940,779.60 = 623,687.20/x
  3. Step 3: Cross multiply
    627,186.40x = 940,779.60 × 623,687.20
  4. Step 4: Simplify right side
    627,186.40x = 586,752,194,541.12
  5. Step 5: Solve for x
    x = 586,752,194,541.12/627,186.40
  6. Step 6: Final answer
    x = 935,530.80

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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.