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Finding the Fourth Proportional to 1,884,560.78, 2,819,707.67 and 1,116,470.88

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Solution

The fourth proportional to 1,884,560.78, 2,819,707.67 and 1,116,470.88 is: 1,670,480.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,884,560.78 : 2,819,707.67 = 1,116,470.88 : x
  2. Step 2: Convert to fraction form
    1,884,560.78/2,819,707.67 = 1,116,470.88/x
  3. Step 3: Cross multiply
    1,884,560.78x = 2,819,707.67 × 1,116,470.88
  4. Step 4: Simplify right side
    1,884,560.78x = 3,148,121,506,458.83
  5. Step 5: Solve for x
    x = 3,148,121,506,458.83/1,884,560.78
  6. Step 6: Final answer
    x = 1,670,480.22

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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.