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Finding the Fourth Proportional to 298,988,570.80, 448,482,856.20 and 298,988,570.80

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Solution

The fourth proportional to 298,988,570.80, 448,482,856.20 and 298,988,570.80 is: 448,482,856.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,988,570.80 : 448,482,856.20 = 298,988,570.80 : x
  2. Step 2: Convert to fraction form
    298,988,570.80/448,482,856.20 = 298,988,570.80/x
  3. Step 3: Cross multiply
    298,988,570.80x = 448,482,856.20 × 298,988,570.80
  4. Step 4: Simplify right side
    298,988,570.80x = 134,091,248,203,539,920
  5. Step 5: Solve for x
    x = 134,091,248,203,539,920/298,988,570.80
  6. Step 6: Final answer
    x = 448,482,856.20

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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.