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Finding the Fourth Proportional to 572,819.76, 790,503.80 and 314,700.03

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Solution

The fourth proportional to 572,819.76, 790,503.80 and 314,700.03 is: 434,292.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,819.76 : 790,503.80 = 314,700.03 : x
  2. Step 2: Convert to fraction form
    572,819.76/790,503.80 = 314,700.03/x
  3. Step 3: Cross multiply
    572,819.76x = 790,503.80 × 314,700.03
  4. Step 4: Simplify right side
    572,819.76x = 248,771,568,001.61
  5. Step 5: Solve for x
    x = 248,771,568,001.61/572,819.76
  6. Step 6: Final answer
    x = 434,292.92

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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.