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Finding the Fourth Proportional to 1,256,330.43, 1,734,043.92 and 712,784.37

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Solution

The fourth proportional to 1,256,330.43, 1,734,043.92 and 712,784.37 is: 983,817.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,330.43 : 1,734,043.92 = 712,784.37 : x
  2. Step 2: Convert to fraction form
    1,256,330.43/1,734,043.92 = 712,784.37/x
  3. Step 3: Cross multiply
    1,256,330.43x = 1,734,043.92 × 712,784.37
  4. Step 4: Simplify right side
    1,256,330.43x = 1,235,999,403,069.53
  5. Step 5: Solve for x
    x = 1,235,999,403,069.53/1,256,330.43
  6. Step 6: Final answer
    x = 983,817.13

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