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Finding the Fourth Proportional to 502,685,393.80, 754,028,090.70 and 466,405,688.20

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Solution

The fourth proportional to 502,685,393.80, 754,028,090.70 and 466,405,688.20 is: 699,608,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,685,393.80 : 754,028,090.70 = 466,405,688.20 : x
  2. Step 2: Convert to fraction form
    502,685,393.80/754,028,090.70 = 466,405,688.20/x
  3. Step 3: Cross multiply
    502,685,393.80x = 754,028,090.70 × 466,405,688.20
  4. Step 4: Simplify right side
    502,685,393.80x = 351,682,990,565,065,536
  5. Step 5: Solve for x
    x = 351,682,990,565,065,536/502,685,393.80
  6. Step 6: Final answer
    x = 699,608,532.30

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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.