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Finding the Fourth Proportional to 448,430,415.45, 672,645,623.18 and 448,430,415.45

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Solution

The fourth proportional to 448,430,415.45, 672,645,623.18 and 448,430,415.45 is: 672,645,623.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,430,415.45 : 672,645,623.18 = 448,430,415.45 : x
  2. Step 2: Convert to fraction form
    448,430,415.45/672,645,623.18 = 448,430,415.45/x
  3. Step 3: Cross multiply
    448,430,415.45x = 672,645,623.18 × 448,430,415.45
  4. Step 4: Simplify right side
    448,430,415.45x = 301,634,756,250,989,376
  5. Step 5: Solve for x
    x = 301,634,756,250,989,376/448,430,415.45
  6. Step 6: Final answer
    x = 672,645,623.18

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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.