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Finding the Fourth Proportional to 572,434.52, 857,641.40 and 347,337.84

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Solution

The fourth proportional to 572,434.52, 857,641.40 and 347,337.84 is: 520,393.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,434.52 : 857,641.40 = 347,337.84 : x
  2. Step 2: Convert to fraction form
    572,434.52/857,641.40 = 347,337.84/x
  3. Step 3: Cross multiply
    572,434.52x = 857,641.40 × 347,337.84
  4. Step 4: Simplify right side
    572,434.52x = 297,891,309,633.89
  5. Step 5: Solve for x
    x = 297,891,309,633.89/572,434.52
  6. Step 6: Final answer
    x = 520,393.69

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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.