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Finding the Fourth Proportional to 1,147,253.04, 1,583,247.60 and 631,028.76

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Solution

The fourth proportional to 1,147,253.04, 1,583,247.60 and 631,028.76 is: 870,840.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,253.04 : 1,583,247.60 = 631,028.76 : x
  2. Step 2: Convert to fraction form
    1,147,253.04/1,583,247.60 = 631,028.76/x
  3. Step 3: Cross multiply
    1,147,253.04x = 1,583,247.60 × 631,028.76
  4. Step 4: Simplify right side
    1,147,253.04x = 999,074,769,800.98
  5. Step 5: Solve for x
    x = 999,074,769,800.98/1,147,253.04
  6. Step 6: Final answer
    x = 870,840.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.