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Finding the Fourth Proportional to 622,286.90, 933,430.35 and 622,286.90

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Solution

The fourth proportional to 622,286.90, 933,430.35 and 622,286.90 is: 933,430.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,286.90 : 933,430.35 = 622,286.90 : x
  2. Step 2: Convert to fraction form
    622,286.90/933,430.35 = 622,286.90/x
  3. Step 3: Cross multiply
    622,286.90x = 933,430.35 × 622,286.90
  4. Step 4: Simplify right side
    622,286.90x = 580,861,478,867.42
  5. Step 5: Solve for x
    x = 580,861,478,867.42/622,286.90
  6. Step 6: Final answer
    x = 933,430.35

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Half scale
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Double scale
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Similar ratio
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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.