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Finding the Fourth Proportional to 539,903.64, 744,886.62 and 349,158.36

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Solution

The fourth proportional to 539,903.64, 744,886.62 and 349,158.36 is: 481,721.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,903.64 : 744,886.62 = 349,158.36 : x
  2. Step 2: Convert to fraction form
    539,903.64/744,886.62 = 349,158.36/x
  3. Step 3: Cross multiply
    539,903.64x = 744,886.62 × 349,158.36
  4. Step 4: Simplify right side
    539,903.64x = 260,083,390,625.14
  5. Step 5: Solve for x
    x = 260,083,390,625.14/539,903.64
  6. Step 6: Final answer
    x = 481,721.87

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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.