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Finding the Fourth Proportional to 448,364.10, 628,176.30 and 448,364.10

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Solution

The fourth proportional to 448,364.10, 628,176.30 and 448,364.10 is: 628,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,364.10 : 628,176.30 = 448,364.10 : x
  2. Step 2: Convert to fraction form
    448,364.10/628,176.30 = 448,364.10/x
  3. Step 3: Cross multiply
    448,364.10x = 628,176.30 × 448,364.10
  4. Step 4: Simplify right side
    448,364.10x = 281,651,701,390.83
  5. Step 5: Solve for x
    x = 281,651,701,390.83/448,364.10
  6. Step 6: Final answer
    x = 628,176.30

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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.