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Finding the Fourth Proportional to 537,804,978.20, 806,707,467.30 and 525,861,042.20

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Solution

The fourth proportional to 537,804,978.20, 806,707,467.30 and 525,861,042.20 is: 788,791,563.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,804,978.20 : 806,707,467.30 = 525,861,042.20 : x
  2. Step 2: Convert to fraction form
    537,804,978.20/806,707,467.30 = 525,861,042.20/x
  3. Step 3: Cross multiply
    537,804,978.20x = 806,707,467.30 × 525,861,042.20
  4. Step 4: Simplify right side
    537,804,978.20x = 424,216,029,504,900,416
  5. Step 5: Solve for x
    x = 424,216,029,504,900,416/537,804,978.20
  6. Step 6: Final answer
    x = 788,791,563.30

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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.