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Finding the Fourth Proportional to 571,960.64, 789,242.40 and 317,248.32

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Solution

The fourth proportional to 571,960.64, 789,242.40 and 317,248.32 is: 437,767.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,960.64 : 789,242.40 = 317,248.32 : x
  2. Step 2: Convert to fraction form
    571,960.64/789,242.40 = 317,248.32/x
  3. Step 3: Cross multiply
    571,960.64x = 789,242.40 × 317,248.32
  4. Step 4: Simplify right side
    571,960.64x = 250,385,825,472.77
  5. Step 5: Solve for x
    x = 250,385,825,472.77/571,960.64
  6. Step 6: Final answer
    x = 437,767.58

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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.