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Finding the Fourth Proportional to 6,649,009.60, 9,973,517.10 and 1,600,320.10

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Solution

The fourth proportional to 6,649,009.60, 9,973,517.10 and 1,600,320.10 is: 2,400,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,649,009.60 : 9,973,517.10 = 1,600,320.10 : x
  2. Step 2: Convert to fraction form
    6,649,009.60/9,973,517.10 = 1,600,320.10/x
  3. Step 3: Cross multiply
    6,649,009.60x = 9,973,517.10 × 1,600,320.10
  4. Step 4: Simplify right side
    6,649,009.60x = 15,960,819,882,823.71
  5. Step 5: Solve for x
    x = 15,960,819,882,823.71/6,649,009.60
  6. Step 6: Final answer
    x = 2,400,480.80

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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.