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Finding the Fourth Proportional to 1,367,357,692.96, 1,886,375,803.86 and 915,381,271.77

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Solution

The fourth proportional to 1,367,357,692.96, 1,886,375,803.86 and 915,381,271.77 is: 1,262,839,336.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367,357,692.96 : 1,886,375,803.86 = 915,381,271.77 : x
  2. Step 2: Convert to fraction form
    1,367,357,692.96/1,886,375,803.86 = 915,381,271.77/x
  3. Step 3: Cross multiply
    1,367,357,692.96x = 1,886,375,803.86 × 915,381,271.77
  4. Step 4: Simplify right side
    1,367,357,692.96x = 1,726,753,082,380,596,480
  5. Step 5: Solve for x
    x = 1,726,753,082,380,596,480/1,367,357,692.96
  6. Step 6: Final answer
    x = 1,262,839,336.97

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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.