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Finding the Fourth Proportional to 628,271.64, 866,626.09 and 547,892.10

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Solution

The fourth proportional to 628,271.64, 866,626.09 and 547,892.10 is: 755,752.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,271.64 : 866,626.09 = 547,892.10 : x
  2. Step 2: Convert to fraction form
    628,271.64/866,626.09 = 547,892.10/x
  3. Step 3: Cross multiply
    628,271.64x = 866,626.09 × 547,892.10
  4. Step 4: Simplify right side
    628,271.64x = 474,817,586,995.16
  5. Step 5: Solve for x
    x = 474,817,586,995.16/628,271.64
  6. Step 6: Final answer
    x = 755,752.06

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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.