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Finding the Fourth Proportional to 1,738,212.80, 2,604,208.80 and 1,470,718.40

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Solution

The fourth proportional to 1,738,212.80, 2,604,208.80 and 1,470,718.40 is: 2,203,445.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738,212.80 : 2,604,208.80 = 1,470,718.40 : x
  2. Step 2: Convert to fraction form
    1,738,212.80/2,604,208.80 = 1,470,718.40/x
  3. Step 3: Cross multiply
    1,738,212.80x = 2,604,208.80 × 1,470,718.40
  4. Step 4: Simplify right side
    1,738,212.80x = 3,830,057,799,601.92
  5. Step 5: Solve for x
    x = 3,830,057,799,601.92/1,738,212.80
  6. Step 6: Final answer
    x = 2,203,445.86

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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.