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Finding the Fourth Proportional to 531,562,021.20, 797,343,031.80 and 531,562,021.20

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Solution

The fourth proportional to 531,562,021.20, 797,343,031.80 and 531,562,021.20 is: 797,343,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,562,021.20 : 797,343,031.80 = 531,562,021.20 : x
  2. Step 2: Convert to fraction form
    531,562,021.20/797,343,031.80 = 531,562,021.20/x
  3. Step 3: Cross multiply
    531,562,021.20x = 797,343,031.80 × 531,562,021.20
  4. Step 4: Simplify right side
    531,562,021.20x = 423,837,273,573,343,808
  5. Step 5: Solve for x
    x = 423,837,273,573,343,808/531,562,021.20
  6. Step 6: Final answer
    x = 797,343,031.80

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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.