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Finding the Fourth Proportional to 623,850.40, 936,099.60 and 291,426.40

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Solution

The fourth proportional to 623,850.40, 936,099.60 and 291,426.40 is: 437,290.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,850.40 : 936,099.60 = 291,426.40 : x
  2. Step 2: Convert to fraction form
    623,850.40/936,099.60 = 291,426.40/x
  3. Step 3: Cross multiply
    623,850.40x = 936,099.60 × 291,426.40
  4. Step 4: Simplify right side
    623,850.40x = 272,804,136,469.44
  5. Step 5: Solve for x
    x = 272,804,136,469.44/623,850.40
  6. Step 6: Final answer
    x = 437,290.95

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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.