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Finding the Fourth Proportional to 298,988,718.30, 448,483,077.45 and 298,988,718.30

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Solution

The fourth proportional to 298,988,718.30, 448,483,077.45 and 298,988,718.30 is: 448,483,077.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,988,718.30 : 448,483,077.45 = 298,988,718.30 : x
  2. Step 2: Convert to fraction form
    298,988,718.30/448,483,077.45 = 298,988,718.30/x
  3. Step 3: Cross multiply
    298,988,718.30x = 448,483,077.45 × 298,988,718.30
  4. Step 4: Simplify right side
    298,988,718.30x = 134,091,380,506,015,136
  5. Step 5: Solve for x
    x = 134,091,380,506,015,136/298,988,718.30
  6. Step 6: Final answer
    x = 448,483,077.45

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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.