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Finding the Fourth Proportional to 543,603.60, 815,405.40 and 504,237.60

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Solution

The fourth proportional to 543,603.60, 815,405.40 and 504,237.60 is: 756,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,603.60 : 815,405.40 = 504,237.60 : x
  2. Step 2: Convert to fraction form
    543,603.60/815,405.40 = 504,237.60/x
  3. Step 3: Cross multiply
    543,603.60x = 815,405.40 × 504,237.60
  4. Step 4: Simplify right side
    543,603.60x = 411,158,061,923.04
  5. Step 5: Solve for x
    x = 411,158,061,923.04/543,603.60
  6. Step 6: Final answer
    x = 756,356.40

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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.