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Finding the Fourth Proportional to 477,745.80, 716,618.70 and 267,356.40

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Solution

The fourth proportional to 477,745.80, 716,618.70 and 267,356.40 is: 401,034.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,745.80 : 716,618.70 = 267,356.40 : x
  2. Step 2: Convert to fraction form
    477,745.80/716,618.70 = 267,356.40/x
  3. Step 3: Cross multiply
    477,745.80x = 716,618.70 × 267,356.40
  4. Step 4: Simplify right side
    477,745.80x = 191,592,595,804.68
  5. Step 5: Solve for x
    x = 191,592,595,804.68/477,745.80
  6. Step 6: Final answer
    x = 401,034.60

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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.