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Finding the Fourth Proportional to 3,887,812.95, 5,831,054.88 and 1,047,260.80

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Solution

The fourth proportional to 3,887,812.95, 5,831,054.88 and 1,047,260.80 is: 1,570,712.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887,812.95 : 5,831,054.88 = 1,047,260.80 : x
  2. Step 2: Convert to fraction form
    3,887,812.95/5,831,054.88 = 1,047,260.80/x
  3. Step 3: Cross multiply
    3,887,812.95x = 5,831,054.88 × 1,047,260.80
  4. Step 4: Simplify right side
    3,887,812.95x = 6,106,635,198,472.70
  5. Step 5: Solve for x
    x = 6,106,635,198,472.70/3,887,812.95
  6. Step 6: Final answer
    x = 1,570,712.19

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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.