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Finding the Fourth Proportional to 617,068.40, 851,995.70 and 481,254.08

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Solution

The fourth proportional to 617,068.40, 851,995.70 and 481,254.08 is: 664,474.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,068.40 : 851,995.70 = 481,254.08 : x
  2. Step 2: Convert to fraction form
    617,068.40/851,995.70 = 481,254.08/x
  3. Step 3: Cross multiply
    617,068.40x = 851,995.70 × 481,254.08
  4. Step 4: Simplify right side
    617,068.40x = 410,026,406,767.46
  5. Step 5: Solve for x
    x = 410,026,406,767.46/617,068.40
  6. Step 6: Final answer
    x = 664,474.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.