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Finding the Fourth Proportional to 572,434.89, 857,641.96 and 347,338.22

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Solution

The fourth proportional to 572,434.89, 857,641.96 and 347,338.22 is: 520,394.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,434.89 : 857,641.96 = 347,338.22 : x
  2. Step 2: Convert to fraction form
    572,434.89/857,641.96 = 347,338.22/x
  3. Step 3: Cross multiply
    572,434.89x = 857,641.96 × 347,338.22
  4. Step 4: Simplify right side
    572,434.89x = 297,891,826,627.16
  5. Step 5: Solve for x
    x = 297,891,826,627.16/572,434.89
  6. Step 6: Final answer
    x = 520,394.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.