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Finding the Fourth Proportional to 570,954.11, 787,853.10 and 316,241.51

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Solution

The fourth proportional to 570,954.11, 787,853.10 and 316,241.51 is: 436,378.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,954.11 : 787,853.10 = 316,241.51 : x
  2. Step 2: Convert to fraction form
    570,954.11/787,853.10 = 316,241.51/x
  3. Step 3: Cross multiply
    570,954.11x = 787,853.10 × 316,241.51
  4. Step 4: Simplify right side
    570,954.11x = 249,151,848,481.71
  5. Step 5: Solve for x
    x = 249,151,848,481.71/570,954.11
  6. Step 6: Final answer
    x = 436,378.07

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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.