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Finding the Fourth Proportional to 572,345.90, 789,797.80 and 317,677.04

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Solution

The fourth proportional to 572,345.90, 789,797.80 and 317,677.04 is: 438,372.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,345.90 : 789,797.80 = 317,677.04 : x
  2. Step 2: Convert to fraction form
    572,345.90/789,797.80 = 317,677.04/x
  3. Step 3: Cross multiply
    572,345.90x = 789,797.80 × 317,677.04
  4. Step 4: Simplify right side
    572,345.90x = 250,900,627,302.51
  5. Step 5: Solve for x
    x = 250,900,627,302.51/572,345.90
  6. Step 6: Final answer
    x = 438,372.37

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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.