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Finding the Fourth Proportional to 487,799,992.90, 673,164,636.34 and 264,781,529.74

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Solution

The fourth proportional to 487,799,992.90, 673,164,636.34 and 264,781,529.74 is: 365,398,861.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,799,992.90 : 673,164,636.34 = 264,781,529.74 : x
  2. Step 2: Convert to fraction form
    487,799,992.90/673,164,636.34 = 264,781,529.74/x
  3. Step 3: Cross multiply
    487,799,992.90x = 673,164,636.34 × 264,781,529.74
  4. Step 4: Simplify right side
    487,799,992.90x = 178,241,562,173,610,176
  5. Step 5: Solve for x
    x = 178,241,562,173,610,176/487,799,992.90
  6. Step 6: Final answer
    x = 365,398,861.77

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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.