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Finding the Fourth Proportional to 575,425,892.80, 863,138,839.20 and 571,394,814.40

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Solution

The fourth proportional to 575,425,892.80, 863,138,839.20 and 571,394,814.40 is: 857,092,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,425,892.80 : 863,138,839.20 = 571,394,814.40 : x
  2. Step 2: Convert to fraction form
    575,425,892.80/863,138,839.20 = 571,394,814.40/x
  3. Step 3: Cross multiply
    575,425,892.80x = 863,138,839.20 × 571,394,814.40
  4. Step 4: Simplify right side
    575,425,892.80x = 493,193,056,826,115,456
  5. Step 5: Solve for x
    x = 493,193,056,826,115,456/575,425,892.80
  6. Step 6: Final answer
    x = 857,092,221.60

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1.5x scale

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.