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Finding the Fourth Proportional to 572,732.89, 790,345.80 and 343,416.75

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Solution

The fourth proportional to 572,732.89, 790,345.80 and 343,416.75 is: 473,899.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,732.89 : 790,345.80 = 343,416.75 : x
  2. Step 2: Convert to fraction form
    572,732.89/790,345.80 = 343,416.75/x
  3. Step 3: Cross multiply
    572,732.89x = 790,345.80 × 343,416.75
  4. Step 4: Simplify right side
    572,732.89x = 271,417,983,048.35
  5. Step 5: Solve for x
    x = 271,417,983,048.35/572,732.89
  6. Step 6: Final answer
    x = 473,899.77

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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.