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Finding the Fourth Proportional to 1,039,964.72, 1,559,749.84 and 506,949.68

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Solution

The fourth proportional to 1,039,964.72, 1,559,749.84 and 506,949.68 is: 760,328.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,964.72 : 1,559,749.84 = 506,949.68 : x
  2. Step 2: Convert to fraction form
    1,039,964.72/1,559,749.84 = 506,949.68/x
  3. Step 3: Cross multiply
    1,039,964.72x = 1,559,749.84 × 506,949.68
  4. Step 4: Simplify right side
    1,039,964.72x = 790,714,682,268.05
  5. Step 5: Solve for x
    x = 790,714,682,268.05/1,039,964.72
  6. Step 6: Final answer
    x = 760,328.37

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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.