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Finding the Fourth Proportional to 349,598,109.60, 488,530,360.80 and 349,598,109.60

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Solution

The fourth proportional to 349,598,109.60, 488,530,360.80 and 349,598,109.60 is: 488,530,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,598,109.60 : 488,530,360.80 = 349,598,109.60 : x
  2. Step 2: Convert to fraction form
    349,598,109.60/488,530,360.80 = 349,598,109.60/x
  3. Step 3: Cross multiply
    349,598,109.60x = 488,530,360.80 × 349,598,109.60
  4. Step 4: Simplify right side
    349,598,109.60x = 170,789,290,617,885,952
  5. Step 5: Solve for x
    x = 170,789,290,617,885,952/349,598,109.60
  6. Step 6: Final answer
    x = 488,530,360.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.