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Finding the Fourth Proportional to 456,018.46, 629,305.62 and 249,287.75

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Solution

The fourth proportional to 456,018.46, 629,305.62 and 249,287.75 is: 344,017.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,018.46 : 629,305.62 = 249,287.75 : x
  2. Step 2: Convert to fraction form
    456,018.46/629,305.62 = 249,287.75/x
  3. Step 3: Cross multiply
    456,018.46x = 629,305.62 × 249,287.75
  4. Step 4: Simplify right side
    456,018.46x = 156,878,183,356.14
  5. Step 5: Solve for x
    x = 156,878,183,356.14/456,018.46
  6. Step 6: Final answer
    x = 344,017.17

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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.