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Finding the Fourth Proportional to 1,295,596.76, 1,787,929.71 and 714,819.86

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Solution

The fourth proportional to 1,295,596.76, 1,787,929.71 and 714,819.86 is: 986,454.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,596.76 : 1,787,929.71 = 714,819.86 : x
  2. Step 2: Convert to fraction form
    1,295,596.76/1,787,929.71 = 714,819.86/x
  3. Step 3: Cross multiply
    1,295,596.76x = 1,787,929.71 × 714,819.86
  4. Step 4: Simplify right side
    1,295,596.76x = 1,278,047,656,052.39
  5. Step 5: Solve for x
    x = 1,278,047,656,052.39/1,295,596.76
  6. Step 6: Final answer
    x = 986,454.81

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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.