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Finding the Fourth Proportional to 4,871,639.40, 6,831,492.60 and 4,871,639.40

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Solution

The fourth proportional to 4,871,639.40, 6,831,492.60 and 4,871,639.40 is: 6,831,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871,639.40 : 6,831,492.60 = 4,871,639.40 : x
  2. Step 2: Convert to fraction form
    4,871,639.40/6,831,492.60 = 4,871,639.40/x
  3. Step 3: Cross multiply
    4,871,639.40x = 6,831,492.60 × 4,871,639.40
  4. Step 4: Simplify right side
    4,871,639.40x = 33,280,568,510,968.44
  5. Step 5: Solve for x
    x = 33,280,568,510,968.44/4,871,639.40
  6. Step 6: Final answer
    x = 6,831,492.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.