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Finding the Fourth Proportional to 622,173.40, 933,260.10 and 307,245.40

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Solution

The fourth proportional to 622,173.40, 933,260.10 and 307,245.40 is: 460,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,173.40 : 933,260.10 = 307,245.40 : x
  2. Step 2: Convert to fraction form
    622,173.40/933,260.10 = 307,245.40/x
  3. Step 3: Cross multiply
    622,173.40x = 933,260.10 × 307,245.40
  4. Step 4: Simplify right side
    622,173.40x = 286,739,872,728.54
  5. Step 5: Solve for x
    x = 286,739,872,728.54/622,173.40
  6. Step 6: Final answer
    x = 460,868.10

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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.