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Finding the Fourth Proportional to 570,828.92, 787,797.23 and 316,180.31

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Solution

The fourth proportional to 570,828.92, 787,797.23 and 316,180.31 is: 436,358.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,828.92 : 787,797.23 = 316,180.31 : x
  2. Step 2: Convert to fraction form
    570,828.92/787,797.23 = 316,180.31/x
  3. Step 3: Cross multiply
    570,828.92x = 787,797.23 × 316,180.31
  4. Step 4: Simplify right side
    570,828.92x = 249,085,966,878.65
  5. Step 5: Solve for x
    x = 249,085,966,878.65/570,828.92
  6. Step 6: Final answer
    x = 436,358.36

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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.