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Finding the Fourth Proportional to 617,751,528.96, 852,289,683.90 and 349,790,734.50

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Solution

The fourth proportional to 617,751,528.96, 852,289,683.90 and 349,790,734.50 is: 482,593,762.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,751,528.96 : 852,289,683.90 = 349,790,734.50 : x
  2. Step 2: Convert to fraction form
    617,751,528.96/852,289,683.90 = 349,790,734.50/x
  3. Step 3: Cross multiply
    617,751,528.96x = 852,289,683.90 × 349,790,734.50
  4. Step 4: Simplify right side
    617,751,528.96x = 298,123,034,538,153,792
  5. Step 5: Solve for x
    x = 298,123,034,538,153,792/617,751,528.96
  6. Step 6: Final answer
    x = 482,593,762.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.