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Finding the Fourth Proportional to 679,414,500.88, 937,573,018.32 and 411,648,867.52

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Solution

The fourth proportional to 679,414,500.88, 937,573,018.32 and 411,648,867.52 is: 568,063,929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,414,500.88 : 937,573,018.32 = 411,648,867.52 : x
  2. Step 2: Convert to fraction form
    679,414,500.88/937,573,018.32 = 411,648,867.52/x
  3. Step 3: Cross multiply
    679,414,500.88x = 937,573,018.32 × 411,648,867.52
  4. Step 4: Simplify right side
    679,414,500.88x = 385,950,871,208,736,192
  5. Step 5: Solve for x
    x = 385,950,871,208,736,192/679,414,500.88
  6. Step 6: Final answer
    x = 568,063,929.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.