Home / 858,846.40-1,287,232.80-437,905.60

Finding the Fourth Proportional to 858,846.40, 1,287,232.80 and 437,905.60

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Solution

The fourth proportional to 858,846.40, 1,287,232.80 and 437,905.60 is: 656,329.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,846.40 : 1,287,232.80 = 437,905.60 : x
  2. Step 2: Convert to fraction form
    858,846.40/1,287,232.80 = 437,905.60/x
  3. Step 3: Cross multiply
    858,846.40x = 1,287,232.80 × 437,905.60
  4. Step 4: Simplify right side
    858,846.40x = 563,686,451,623.68
  5. Step 5: Solve for x
    x = 563,686,451,623.68/858,846.40
  6. Step 6: Final answer
    x = 656,329.76

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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.