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Finding the Fourth Proportional to 570,664.22, 787,541.39 and 316,015.41

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Solution

The fourth proportional to 570,664.22, 787,541.39 and 316,015.41 is: 436,114.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,664.22 : 787,541.39 = 316,015.41 : x
  2. Step 2: Convert to fraction form
    570,664.22/787,541.39 = 316,015.41/x
  3. Step 3: Cross multiply
    570,664.22x = 787,541.39 × 316,015.41
  4. Step 4: Simplify right side
    570,664.22x = 248,875,213,672.74
  5. Step 5: Solve for x
    x = 248,875,213,672.74/570,664.22
  6. Step 6: Final answer
    x = 436,114.98

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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.