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Finding the Fourth Proportional to 586,918.80, 880,378.20 and 547,261.20

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Solution

The fourth proportional to 586,918.80, 880,378.20 and 547,261.20 is: 820,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,918.80 : 880,378.20 = 547,261.20 : x
  2. Step 2: Convert to fraction form
    586,918.80/880,378.20 = 547,261.20/x
  3. Step 3: Cross multiply
    586,918.80x = 880,378.20 × 547,261.20
  4. Step 4: Simplify right side
    586,918.80x = 481,796,830,185.84
  5. Step 5: Solve for x
    x = 481,796,830,185.84/586,918.80
  6. Step 6: Final answer
    x = 820,891.80

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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.