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Finding the Fourth Proportional to 622,425.60, 933,419.70 and 285,627.60

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Solution

The fourth proportional to 622,425.60, 933,419.70 and 285,627.60 is: 428,341.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,425.60 : 933,419.70 = 285,627.60 : x
  2. Step 2: Convert to fraction form
    622,425.60/933,419.70 = 285,627.60/x
  3. Step 3: Cross multiply
    622,425.60x = 933,419.70 × 285,627.60
  4. Step 4: Simplify right side
    622,425.60x = 266,610,428,703.72
  5. Step 5: Solve for x
    x = 266,610,428,703.72/622,425.60
  6. Step 6: Final answer
    x = 428,341.04

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1.5x scale

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.