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Finding the Fourth Proportional to 570,744.36, 787,672.08 and 316,119.24

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Solution

The fourth proportional to 570,744.36, 787,672.08 and 316,119.24 is: 436,269.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,744.36 : 787,672.08 = 316,119.24 : x
  2. Step 2: Convert to fraction form
    570,744.36/787,672.08 = 316,119.24/x
  3. Step 3: Cross multiply
    570,744.36x = 787,672.08 × 316,119.24
  4. Step 4: Simplify right side
    570,744.36x = 248,998,299,298.82
  5. Step 5: Solve for x
    x = 248,998,299,298.82/570,744.36
  6. Step 6: Final answer
    x = 436,269.40

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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.