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Finding the Fourth Proportional to 872,504.60, 1,307,720.10 and 367,064.60

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Solution

The fourth proportional to 872,504.60, 1,307,720.10 and 367,064.60 is: 550,160.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,504.60 : 1,307,720.10 = 367,064.60 : x
  2. Step 2: Convert to fraction form
    872,504.60/1,307,720.10 = 367,064.60/x
  3. Step 3: Cross multiply
    872,504.60x = 1,307,720.10 × 367,064.60
  4. Step 4: Simplify right side
    872,504.60x = 480,017,755,418.46
  5. Step 5: Solve for x
    x = 480,017,755,418.46/872,504.60
  6. Step 6: Final answer
    x = 550,160.72

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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.