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Finding the Fourth Proportional to 605,116.40, 907,674.60 and 547,055.60

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Solution

The fourth proportional to 605,116.40, 907,674.60 and 547,055.60 is: 820,583.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,116.40 : 907,674.60 = 547,055.60 : x
  2. Step 2: Convert to fraction form
    605,116.40/907,674.60 = 547,055.60/x
  3. Step 3: Cross multiply
    605,116.40x = 907,674.60 × 547,055.60
  4. Step 4: Simplify right side
    605,116.40x = 496,548,472,907.76
  5. Step 5: Solve for x
    x = 496,548,472,907.76/605,116.40
  6. Step 6: Final answer
    x = 820,583.40

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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.