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Finding the Fourth Proportional to 5,913,573.32, 8,871,454.08 and 1,871,078.78

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Solution

The fourth proportional to 5,913,573.32, 8,871,454.08 and 1,871,078.78 is: 2,806,964.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,913,573.32 : 8,871,454.08 = 1,871,078.78 : x
  2. Step 2: Convert to fraction form
    5,913,573.32/8,871,454.08 = 1,871,078.78/x
  3. Step 3: Cross multiply
    5,913,573.32x = 8,871,454.08 × 1,871,078.78
  4. Step 4: Simplify right side
    5,913,573.32x = 16,599,189,476,832.42
  5. Step 5: Solve for x
    x = 16,599,189,476,832.42/5,913,573.32
  6. Step 6: Final answer
    x = 2,806,964.35

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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.