Home / 289,419.47-399,411.17-168,541.28

Finding the Fourth Proportional to 289,419.47, 399,411.17 and 168,541.28

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Solution

The fourth proportional to 289,419.47, 399,411.17 and 168,541.28 is: 232,594.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,419.47 : 399,411.17 = 168,541.28 : x
  2. Step 2: Convert to fraction form
    289,419.47/399,411.17 = 168,541.28/x
  3. Step 3: Cross multiply
    289,419.47x = 399,411.17 × 168,541.28
  4. Step 4: Simplify right side
    289,419.47x = 67,317,269,838.10
  5. Step 5: Solve for x
    x = 67,317,269,838.10/289,419.47
  6. Step 6: Final answer
    x = 232,594.13

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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.