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Finding the Fourth Proportional to 1,260,572.94, 1,739,520.68 and 716,633.24

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Solution

The fourth proportional to 1,260,572.94, 1,739,520.68 and 716,633.24 is: 988,914.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,572.94 : 1,739,520.68 = 716,633.24 : x
  2. Step 2: Convert to fraction form
    1,260,572.94/1,739,520.68 = 716,633.24/x
  3. Step 3: Cross multiply
    1,260,572.94x = 1,739,520.68 × 716,633.24
  4. Step 4: Simplify right side
    1,260,572.94x = 1,246,598,328,674.63
  5. Step 5: Solve for x
    x = 1,246,598,328,674.63/1,260,572.94
  6. Step 6: Final answer
    x = 988,914.08

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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.