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Finding the Fourth Proportional to 622,387.80, 933,581.70 and 613,056.60

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Solution

The fourth proportional to 622,387.80, 933,581.70 and 613,056.60 is: 919,584.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,387.80 : 933,581.70 = 613,056.60 : x
  2. Step 2: Convert to fraction form
    622,387.80/933,581.70 = 613,056.60/x
  3. Step 3: Cross multiply
    622,387.80x = 933,581.70 × 613,056.60
  4. Step 4: Simplify right side
    622,387.80x = 572,338,422,824.22
  5. Step 5: Solve for x
    x = 572,338,422,824.22/622,387.80
  6. Step 6: Final answer
    x = 919,584.90

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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.