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Finding the Fourth Proportional to 6,746,493.60, 10,119,740.40 and 1,954,339.20

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Solution

The fourth proportional to 6,746,493.60, 10,119,740.40 and 1,954,339.20 is: 2,931,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,746,493.60 : 10,119,740.40 = 1,954,339.20 : x
  2. Step 2: Convert to fraction form
    6,746,493.60/10,119,740.40 = 1,954,339.20/x
  3. Step 3: Cross multiply
    6,746,493.60x = 10,119,740.40 × 1,954,339.20
  4. Step 4: Simplify right side
    6,746,493.60x = 19,777,405,357,543.68
  5. Step 5: Solve for x
    x = 19,777,405,357,543.68/6,746,493.60
  6. Step 6: Final answer
    x = 2,931,508.80

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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.