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Finding the Fourth Proportional to 524,507,812.80, 786,761,719.20 and 488,676,004.80

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Solution

The fourth proportional to 524,507,812.80, 786,761,719.20 and 488,676,004.80 is: 733,014,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,507,812.80 : 786,761,719.20 = 488,676,004.80 : x
  2. Step 2: Convert to fraction form
    524,507,812.80/786,761,719.20 = 488,676,004.80/x
  3. Step 3: Cross multiply
    524,507,812.80x = 786,761,719.20 × 488,676,004.80
  4. Step 4: Simplify right side
    524,507,812.80x = 384,471,573,668,235,456
  5. Step 5: Solve for x
    x = 384,471,573,668,235,456/524,507,812.80
  6. Step 6: Final answer
    x = 733,014,007.20

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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.