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Finding the Fourth Proportional to 572,005.94, 789,368.29 and 317,356.52

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Solution

The fourth proportional to 572,005.94, 789,368.29 and 317,356.52 is: 437,952.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,005.94 : 789,368.29 = 317,356.52 : x
  2. Step 2: Convert to fraction form
    572,005.94/789,368.29 = 317,356.52/x
  3. Step 3: Cross multiply
    572,005.94x = 789,368.29 × 317,356.52
  4. Step 4: Simplify right side
    572,005.94x = 250,511,168,772.52
  5. Step 5: Solve for x
    x = 250,511,168,772.52/572,005.94
  6. Step 6: Final answer
    x = 437,952.04

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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.