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Finding the Fourth Proportional to 283,420.52, 423,057.20 and 249,791.46

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Solution

The fourth proportional to 283,420.52, 423,057.20 and 249,791.46 is: 372,859.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,420.52 : 423,057.20 = 249,791.46 : x
  2. Step 2: Convert to fraction form
    283,420.52/423,057.20 = 249,791.46/x
  3. Step 3: Cross multiply
    283,420.52x = 423,057.20 × 249,791.46
  4. Step 4: Simplify right side
    283,420.52x = 105,676,075,651.51
  5. Step 5: Solve for x
    x = 105,676,075,651.51/283,420.52
  6. Step 6: Final answer
    x = 372,859.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.