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Finding the Fourth Proportional to 449,064,249.90, 673,596,374.85 and 255,572,486.70

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Solution

The fourth proportional to 449,064,249.90, 673,596,374.85 and 255,572,486.70 is: 383,358,730.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,064,249.90 : 673,596,374.85 = 255,572,486.70 : x
  2. Step 2: Convert to fraction form
    449,064,249.90/673,596,374.85 = 255,572,486.70/x
  3. Step 3: Cross multiply
    449,064,249.90x = 673,596,374.85 × 255,572,486.70
  4. Step 4: Simplify right side
    449,064,249.90x = 172,152,700,552,519,840
  5. Step 5: Solve for x
    x = 172,152,700,552,519,840/449,064,249.90
  6. Step 6: Final answer
    x = 383,358,730.05

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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.