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Finding the Fourth Proportional to 907,802.80, 1,361,704.20 and 892,056.40

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Solution

The fourth proportional to 907,802.80, 1,361,704.20 and 892,056.40 is: 1,338,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,802.80 : 1,361,704.20 = 892,056.40 : x
  2. Step 2: Convert to fraction form
    907,802.80/1,361,704.20 = 892,056.40/x
  3. Step 3: Cross multiply
    907,802.80x = 1,361,704.20 × 892,056.40
  4. Step 4: Simplify right side
    907,802.80x = 1,214,716,946,516.88
  5. Step 5: Solve for x
    x = 1,214,716,946,516.88/907,802.80
  6. Step 6: Final answer
    x = 1,338,084.60

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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.