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Finding the Fourth Proportional to 748,650,628.40, 1,122,975,942.60 and 748,650,628.40

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Solution

The fourth proportional to 748,650,628.40, 1,122,975,942.60 and 748,650,628.40 is: 1,122,975,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,650,628.40 : 1,122,975,942.60 = 748,650,628.40 : x
  2. Step 2: Convert to fraction form
    748,650,628.40/1,122,975,942.60 = 748,650,628.40/x
  3. Step 3: Cross multiply
    748,650,628.40x = 1,122,975,942.60 × 748,650,628.40
  4. Step 4: Simplify right side
    748,650,628.40x = 840,716,645,105,572,224
  5. Step 5: Solve for x
    x = 840,716,645,105,572,224/748,650,628.40
  6. Step 6: Final answer
    x = 1,122,975,942.60

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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.