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Finding the Fourth Proportional to 622,643.70, 933,965.55 and 201,914.10

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Solution

The fourth proportional to 622,643.70, 933,965.55 and 201,914.10 is: 302,871.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,643.70 : 933,965.55 = 201,914.10 : x
  2. Step 2: Convert to fraction form
    622,643.70/933,965.55 = 201,914.10/x
  3. Step 3: Cross multiply
    622,643.70x = 933,965.55 × 201,914.10
  4. Step 4: Simplify right side
    622,643.70x = 188,580,813,459.26
  5. Step 5: Solve for x
    x = 188,580,813,459.26/622,643.70
  6. Step 6: Final answer
    x = 302,871.15

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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.