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Finding the Fourth Proportional to 376,695.43, 519,976.16 and 249,412.03

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Solution

The fourth proportional to 376,695.43, 519,976.16 and 249,412.03 is: 344,278.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,695.43 : 519,976.16 = 249,412.03 : x
  2. Step 2: Convert to fraction form
    376,695.43/519,976.16 = 249,412.03/x
  3. Step 3: Cross multiply
    376,695.43x = 519,976.16 × 249,412.03
  4. Step 4: Simplify right side
    376,695.43x = 129,688,308,005.50
  5. Step 5: Solve for x
    x = 129,688,308,005.50/376,695.43
  6. Step 6: Final answer
    x = 344,278.95

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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.