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Finding the Fourth Proportional to 838,472,004.95, 1,257,708,007.43 and 838,472,004.95

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Solution

The fourth proportional to 838,472,004.95, 1,257,708,007.43 and 838,472,004.95 is: 1,257,708,007.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,472,004.95 : 1,257,708,007.43 = 838,472,004.95 : x
  2. Step 2: Convert to fraction form
    838,472,004.95/1,257,708,007.43 = 838,472,004.95/x
  3. Step 3: Cross multiply
    838,472,004.95x = 1,257,708,007.43 × 838,472,004.95
  4. Step 4: Simplify right side
    838,472,004.95x = 1,054,552,954,631,501,696
  5. Step 5: Solve for x
    x = 1,054,552,954,631,501,696/838,472,004.95
  6. Step 6: Final answer
    x = 1,257,708,007.43

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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.