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Finding the Fourth Proportional to 907,793.10, 1,361,689.65 and 609,194.70

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Solution

The fourth proportional to 907,793.10, 1,361,689.65 and 609,194.70 is: 913,792.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,793.10 : 1,361,689.65 = 609,194.70 : x
  2. Step 2: Convert to fraction form
    907,793.10/1,361,689.65 = 609,194.70/x
  3. Step 3: Cross multiply
    907,793.10x = 1,361,689.65 × 609,194.70
  4. Step 4: Simplify right side
    907,793.10x = 829,534,117,824.86
  5. Step 5: Solve for x
    x = 829,534,117,824.86/907,793.10
  6. Step 6: Final answer
    x = 913,792.05

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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.