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Finding the Fourth Proportional to 570,843.96, 787,790.60 and 316,195.12

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Solution

The fourth proportional to 570,843.96, 787,790.60 and 316,195.12 is: 436,363.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,843.96 : 787,790.60 = 316,195.12 : x
  2. Step 2: Convert to fraction form
    570,843.96/787,790.60 = 316,195.12/x
  3. Step 3: Cross multiply
    570,843.96x = 787,790.60 × 316,195.12
  4. Step 4: Simplify right side
    570,843.96x = 249,095,543,301.87
  5. Step 5: Solve for x
    x = 249,095,543,301.87/570,843.96
  6. Step 6: Final answer
    x = 436,363.63

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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.