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Finding the Fourth Proportional to 1,826,562.58, 2,728,643.63 and 1,316,772.88

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Solution

The fourth proportional to 1,826,562.58, 2,728,643.63 and 1,316,772.88 is: 1,967,085.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826,562.58 : 2,728,643.63 = 1,316,772.88 : x
  2. Step 2: Convert to fraction form
    1,826,562.58/2,728,643.63 = 1,316,772.88/x
  3. Step 3: Cross multiply
    1,826,562.58x = 2,728,643.63 × 1,316,772.88
  4. Step 4: Simplify right side
    1,826,562.58x = 3,593,003,931,168.75
  5. Step 5: Solve for x
    x = 3,593,003,931,168.75/1,826,562.58
  6. Step 6: Final answer
    x = 1,967,085.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.