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Finding the Fourth Proportional to 448,434,672.90, 672,652,009.35 and 448,434,672.90

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Solution

The fourth proportional to 448,434,672.90, 672,652,009.35 and 448,434,672.90 is: 672,652,009.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,434,672.90 : 672,652,009.35 = 448,434,672.90 : x
  2. Step 2: Convert to fraction form
    448,434,672.90/672,652,009.35 = 448,434,672.90/x
  3. Step 3: Cross multiply
    448,434,672.90x = 672,652,009.35 × 448,434,672.90
  4. Step 4: Simplify right side
    448,434,672.90x = 301,640,483,788,395,008
  5. Step 5: Solve for x
    x = 301,640,483,788,395,008/448,434,672.90
  6. Step 6: Final answer
    x = 672,652,009.35

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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.