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Finding the Fourth Proportional to 6,492,903.12, 8,963,076.12 and 3,880,328.88

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Solution

The fourth proportional to 6,492,903.12, 8,963,076.12 and 3,880,328.88 is: 5,356,568.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,492,903.12 : 8,963,076.12 = 3,880,328.88 : x
  2. Step 2: Convert to fraction form
    6,492,903.12/8,963,076.12 = 3,880,328.88/x
  3. Step 3: Cross multiply
    6,492,903.12x = 8,963,076.12 × 3,880,328.88
  4. Step 4: Simplify right side
    6,492,903.12x = 34,779,683,122,074.34
  5. Step 5: Solve for x
    x = 34,779,683,122,074.34/6,492,903.12
  6. Step 6: Final answer
    x = 5,356,568.93

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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.