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Finding the Fourth Proportional to 3,887,816.95, 5,831,060.88 and 1,047,264.80

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Solution

The fourth proportional to 3,887,816.95, 5,831,060.88 and 1,047,264.80 is: 1,570,718.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887,816.95 : 5,831,060.88 = 1,047,264.80 : x
  2. Step 2: Convert to fraction form
    3,887,816.95/5,831,060.88 = 1,047,264.80/x
  3. Step 3: Cross multiply
    3,887,816.95x = 5,831,060.88 × 1,047,264.80
  4. Step 4: Simplify right side
    3,887,816.95x = 6,106,664,806,281.03
  5. Step 5: Solve for x
    x = 6,106,664,806,281.03/3,887,816.95
  6. Step 6: Final answer
    x = 1,570,718.19

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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.