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Finding the Fourth Proportional to 907,847.80, 1,361,771.70 and 898,516.60

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Solution

The fourth proportional to 907,847.80, 1,361,771.70 and 898,516.60 is: 1,347,774.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,847.80 : 1,361,771.70 = 898,516.60 : x
  2. Step 2: Convert to fraction form
    907,847.80/1,361,771.70 = 898,516.60/x
  3. Step 3: Cross multiply
    907,847.80x = 1,361,771.70 × 898,516.60
  4. Step 4: Simplify right side
    907,847.80x = 1,223,574,477,860.22
  5. Step 5: Solve for x
    x = 1,223,574,477,860.22/907,847.80
  6. Step 6: Final answer
    x = 1,347,774.90

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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.