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Finding the Fourth Proportional to 1,274,447,426.55, 1,911,671,139.83 and 1,274,447,426.55

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Solution

The fourth proportional to 1,274,447,426.55, 1,911,671,139.83 and 1,274,447,426.55 is: 1,911,671,139.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,447,426.55 : 1,911,671,139.83 = 1,274,447,426.55 : x
  2. Step 2: Convert to fraction form
    1,274,447,426.55/1,911,671,139.83 = 1,274,447,426.55/x
  3. Step 3: Cross multiply
    1,274,447,426.55x = 1,911,671,139.83 × 1,274,447,426.55
  4. Step 4: Simplify right side
    1,274,447,426.55x = 2,436,324,364,559,876,608
  5. Step 5: Solve for x
    x = 2,436,324,364,559,876,608/1,274,447,426.55
  6. Step 6: Final answer
    x = 1,911,671,139.83

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Double scale
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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.