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Finding the Fourth Proportional to 572,007.06, 789,369.84 and 317,357.64

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Solution

The fourth proportional to 572,007.06, 789,369.84 and 317,357.64 is: 437,953.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,007.06 : 789,369.84 = 317,357.64 : x
  2. Step 2: Convert to fraction form
    572,007.06/789,369.84 = 317,357.64/x
  3. Step 3: Cross multiply
    572,007.06x = 789,369.84 × 317,357.64
  4. Step 4: Simplify right side
    572,007.06x = 250,512,549,509.58
  5. Step 5: Solve for x
    x = 250,512,549,509.58/572,007.06
  6. Step 6: Final answer
    x = 437,953.60

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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.