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Finding the Fourth Proportional to 1,356,273.60, 2,034,928.80 and 1,335,019.20

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Solution

The fourth proportional to 1,356,273.60, 2,034,928.80 and 1,335,019.20 is: 2,003,039.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356,273.60 : 2,034,928.80 = 1,335,019.20 : x
  2. Step 2: Convert to fraction form
    1,356,273.60/2,034,928.80 = 1,335,019.20/x
  3. Step 3: Cross multiply
    1,356,273.60x = 2,034,928.80 × 1,335,019.20
  4. Step 4: Simplify right side
    1,356,273.60x = 2,716,669,018,632.96
  5. Step 5: Solve for x
    x = 2,716,669,018,632.96/1,356,273.60
  6. Step 6: Final answer
    x = 2,003,039.08

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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.