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Finding the Fourth Proportional to 572,737.01, 790,351.49 and 343,420.87

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Solution

The fourth proportional to 572,737.01, 790,351.49 and 343,420.87 is: 473,905.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,737.01 : 790,351.49 = 343,420.87 : x
  2. Step 2: Convert to fraction form
    572,737.01/790,351.49 = 343,420.87/x
  3. Step 3: Cross multiply
    572,737.01x = 790,351.49 × 343,420.87
  4. Step 4: Simplify right side
    572,737.01x = 271,423,196,301.60
  5. Step 5: Solve for x
    x = 271,423,196,301.60/572,737.01
  6. Step 6: Final answer
    x = 473,905.46

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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.