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Finding the Fourth Proportional to 1,132,544.45, 1,562,978.76 and 649,140.91

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Solution

The fourth proportional to 1,132,544.45, 1,562,978.76 and 649,140.91 is: 895,853.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132,544.45 : 1,562,978.76 = 649,140.91 : x
  2. Step 2: Convert to fraction form
    1,132,544.45/1,562,978.76 = 649,140.91/x
  3. Step 3: Cross multiply
    1,132,544.45x = 1,562,978.76 × 649,140.91
  4. Step 4: Simplify right side
    1,132,544.45x = 1,014,593,446,762.18
  5. Step 5: Solve for x
    x = 1,014,593,446,762.18/1,132,544.45
  6. Step 6: Final answer
    x = 895,853.09

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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.