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Finding the Fourth Proportional to 6,478,140.95, 8,935,728.44 and 4,925,999.71

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Solution

The fourth proportional to 6,478,140.95, 8,935,728.44 and 4,925,999.71 is: 6,794,757.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,478,140.95 : 8,935,728.44 = 4,925,999.71 : x
  2. Step 2: Convert to fraction form
    6,478,140.95/8,935,728.44 = 4,925,999.71/x
  3. Step 3: Cross multiply
    6,478,140.95x = 8,935,728.44 × 4,925,999.71
  4. Step 4: Simplify right side
    6,478,140.95x = 44,017,395,690,618.41
  5. Step 5: Solve for x
    x = 44,017,395,690,618.41/6,478,140.95
  6. Step 6: Final answer
    x = 6,794,757.33

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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.