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Finding the Fourth Proportional to 1,890,152.88, 2,608,474.08 and 1,030,760.16

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Solution

The fourth proportional to 1,890,152.88, 2,608,474.08 and 1,030,760.16 is: 1,422,483.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,152.88 : 2,608,474.08 = 1,030,760.16 : x
  2. Step 2: Convert to fraction form
    1,890,152.88/2,608,474.08 = 1,030,760.16/x
  3. Step 3: Cross multiply
    1,890,152.88x = 2,608,474.08 × 1,030,760.16
  4. Step 4: Simplify right side
    1,890,152.88x = 2,688,711,160,056.65
  5. Step 5: Solve for x
    x = 2,688,711,160,056.65/1,890,152.88
  6. Step 6: Final answer
    x = 1,422,483.43

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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.