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Finding the Fourth Proportional to 384,889.61, 531,017.42 and 249,095.13

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Solution

The fourth proportional to 384,889.61, 531,017.42 and 249,095.13 is: 343,666.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,889.61 : 531,017.42 = 249,095.13 : x
  2. Step 2: Convert to fraction form
    384,889.61/531,017.42 = 249,095.13/x
  3. Step 3: Cross multiply
    384,889.61x = 531,017.42 × 249,095.13
  4. Step 4: Simplify right side
    384,889.61x = 132,273,852,021.69
  5. Step 5: Solve for x
    x = 132,273,852,021.69/384,889.61
  6. Step 6: Final answer
    x = 343,666.99

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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.