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Finding the Fourth Proportional to 715,271.70, 986,664.30 and 446,533.14

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Solution

The fourth proportional to 715,271.70, 986,664.30 and 446,533.14 is: 615,959.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,271.70 : 986,664.30 = 446,533.14 : x
  2. Step 2: Convert to fraction form
    715,271.70/986,664.30 = 446,533.14/x
  3. Step 3: Cross multiply
    715,271.70x = 986,664.30 × 446,533.14
  4. Step 4: Simplify right side
    715,271.70x = 440,578,308,004.90
  5. Step 5: Solve for x
    x = 440,578,308,004.90/715,271.70
  6. Step 6: Final answer
    x = 615,959.37

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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.