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Finding the Fourth Proportional to 1,045,756.72, 1,568,635 and 730,828.72

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Solution

The fourth proportional to 1,045,756.72, 1,568,635 and 730,828.72 is: 1,096,243.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045,756.72 : 1,568,635 = 730,828.72 : x
  2. Step 2: Convert to fraction form
    1,045,756.72/1,568,635 = 730,828.72/x
  3. Step 3: Cross multiply
    1,045,756.72x = 1,568,635 × 730,828.72
  4. Step 4: Simplify right side
    1,045,756.72x = 1,146,403,509,197.20
  5. Step 5: Solve for x
    x = 1,146,403,509,197.20/1,045,756.72
  6. Step 6: Final answer
    x = 1,096,243.02

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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.