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Finding the Fourth Proportional to 622,925.60, 933,805.20 and 487,914.80

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Solution

The fourth proportional to 622,925.60, 933,805.20 and 487,914.80 is: 731,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,925.60 : 933,805.20 = 487,914.80 : x
  2. Step 2: Convert to fraction form
    622,925.60/933,805.20 = 487,914.80/x
  3. Step 3: Cross multiply
    622,925.60x = 933,805.20 × 487,914.80
  4. Step 4: Simplify right side
    622,925.60x = 455,617,377,396.96
  5. Step 5: Solve for x
    x = 455,617,377,396.96/622,925.60
  6. Step 6: Final answer
    x = 731,415.40

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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.