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Finding the Fourth Proportional to 295,991,968.40, 443,987,952.60 and 291,457,005.20

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Solution

The fourth proportional to 295,991,968.40, 443,987,952.60 and 291,457,005.20 is: 437,185,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,991,968.40 : 443,987,952.60 = 291,457,005.20 : x
  2. Step 2: Convert to fraction form
    295,991,968.40/443,987,952.60 = 291,457,005.20/x
  3. Step 3: Cross multiply
    295,991,968.40x = 443,987,952.60 × 291,457,005.20
  4. Step 4: Simplify right side
    295,991,968.40x = 129,403,399,009,675,552
  5. Step 5: Solve for x
    x = 129,403,399,009,675,552/295,991,968.40
  6. Step 6: Final answer
    x = 437,185,507.80

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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.