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Finding the Fourth Proportional to 572,508,002.80, 858,762,004.20 and 572,508,002.80

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Solution

The fourth proportional to 572,508,002.80, 858,762,004.20 and 572,508,002.80 is: 858,762,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,508,002.80 : 858,762,004.20 = 572,508,002.80 : x
  2. Step 2: Convert to fraction form
    572,508,002.80/858,762,004.20 = 572,508,002.80/x
  3. Step 3: Cross multiply
    572,508,002.80x = 858,762,004.20 × 572,508,002.80
  4. Step 4: Simplify right side
    572,508,002.80x = 491,648,119,905,067,200
  5. Step 5: Solve for x
    x = 491,648,119,905,067,200/572,508,002.80
  6. Step 6: Final answer
    x = 858,762,004.20

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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.